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By David Dunaief, M.D.

Dr. David Dunaief

Erectile dysfunction (ED) is a very common problem with a stigma. In fact, I have had several patients who resisted telling me they suffered from this malady. Because it can be a symptom of other diseases, it is crucial that you share this information with your doctor.

ED affects approximately 1 in 10 men on a chronic basis. If it occurs less than 20 percent of the time, it is normal; whereas if it occurs more than 50 percent of the time, there is a problem that requires therapy, according to the Cleveland Clinic (1). 

There are oral medications for ED. You’ve probably seen ads for them everywhere. Its prevalence has led pharmaceutical companies to saturate the airwaves, especially during sporting events. Approved medications include sildenafil (Viagra, or the “little blue pill”), tadalafil (Cialis), vardenafil (Levitra, Staxyn), and avanafil (Stendra). These drugs work by affecting the endothelium, or inner layer, of blood vessels and causing vasodilation, or enlargement of blood vessels, which increases blood flow to the penis. Unfortunately, this does not solve the medical problem, but it does provide a short-term fix for those who are good candidates for treatment.

ED’s prevalence increases with age. In a multinational MALES study, ED affected 8 percent of those aged 20-30 and 37 percent of 70-75-year-olds (2). What was surprising was that advanced age had the least association with ED, increasing the odds by only five percent. So, what contributes to the rest of the increase as we age? Disease processes and drug therapies.

What is the relationship between medical conditions and ED?

Chronic diseases significantly contribute to ED. The opposite may also be true; ED may be a harbinger of disease. Typical contributors include metabolic syndrome, diabetes, high blood pressure, cardiovascular disease and obesity. In the Look AHEAD trial, ED had a greater than two-fold association with hypertension and a three-fold association with metabolic syndrome (3). In another study, ED was associated with a 2.5-times increase in cardiovascular disease (4).

A randomized clinical trial (RCT) showed that patients with ED had significantly more calcification, or atherosclerosis, in the arteries when compared to a control group (5). They were more than three times as likely to have severe levels of calcification. They also had more inflammation, measured by C-reactive protein. 

How do medications contribute to ED?

About 25 percent of ED cases are thought to be associated with medications, such antidepressants; NSAIDs, such as ibuprofen and naproxen sodium; and hypertension medications. Unfortunately, the most common antidepressant medications, SSRIs, have the greatest impact on ED of all antidepressants. 

The California Men’s Health Study, with over 80,000 participants, showed that there was an association between NSAIDs and ED, with a 38 percent increase in ED in patients who use NSAIDs on a regular basis (6). The authors warn that patients should not stop taking NSAIDS without consulting their physicians.

Also, high blood pressure drugs have a reputation for causing ED. Beta blockers were thought to be the main culprit. A meta-analysis of 42 studies showed that beta blockers have a small effect, but thiazide diuretics (water pills) more than doubled ED, compared to placebo (7).

How does diet affect ED?

The Mediterranean-type diet has been shown to treat and prevent ED, improving one’s health and sex life at the same time. It’s the green leafy alternative to the little blue pill. The foods are rich in omega-3 fatty acids and high in monounsaturated fats and polyunsaturated fats, as well as in fiber. Components include whole grains, fruits, vegetables, legumes, walnuts, and olive oil. 

In two RCTs lasting two years, those who followed a Mediterranean-type diet saw improvements in their endothelial functioning (8, 9). They also had reduced inflammation and decreased insulin resistance.

In another study, men who had the greatest compliance with the Mediterranean-type diet were significantly less likely to have ED, compared to those with the lowest compliance (10). Even more impressive was that the group with the highest compliance had a 37 percent reduction in severe ED versus the low compliance group.

A study of participants in the Health Professionals Follow-up Study looked more closely at both the Mediterranean-type diet and an Alternative Healthy Eating Index 2010 diet, which emphasized consuming vegetables, fruits, nuts, legumes, and fish or other sources of long-chain fats, as well as avoiding red and processed meats (11). At this point, it probably won’t surprise you to hear that the greater participants’ compliance with either of these diets, the less likely they were to experience ED.

Therefore, it is important to bring ED to the attention of your physician. 

There are very effective lifestyle alternatives to oral medication that provide positive overall health effects and treat associated chronic diseases, while also helping patients eliminate medications that contribute to ED.

References:

(1) clevelandclinic.org. (2) Curr Med Res Opin. 2004;20(5):607. (3) J Sex Med. 2009;6(5):1414-22. (4) Int J Androl. 2010;33(6):853-60. (5) J Am Coll Cardiol. 2005;46(8):1503. (6) Medicine (Baltimore). 2018 Jul;97(28):e11367. (7) JAMA. 2002;288(3):351. (8) Int J Impot Res. 2006;18(4):405-10. (9) JAMA. 2004;292(12):1440-6. (10) J Sex Med. 2010 May;7(5):1911-7. (11) JAMA Netw Open. 2020 Nov 2;3(11):e2021701.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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Mood changes, headaches and itchy skin are some of the milder consequences of winter dehydration. METRO photo

By David Dunaief, M.D.

Dr. David Dunaief

Now that we’re settling into the cooler winter months, dehydration is resurfacing as a challenge. Dry heat makes it hard to stay hydrated or to keep any humidity in your home or office, which can dehydrate your body.

Complications and symptoms of dehydration can be mild to severe, ranging from constipation, mood changes, itchy skin, headaches and heart palpitations to heat stroke, migraines and heart attacks.

The dry air can also make our throats and sinuses dry, making us uncomfortable and more susceptible to irritations and viruses.

Let’s look at some suggestions for keeping hydration up and some consequences of dehydration.

How do you keep humidity in the air?

To reduce sinus inflammation and dry skin that heated air can promote, measure the humidity level in your home with a hygrometer and target keeping it between 30 and 50 percent (1). When the temperature outside drops below 10 degrees Fahrenheit, lower this to 25 percent.

Strategies for adding moisture to the air include using cool mist humidifiers, keeping the bathroom door open after you bathe or shower, and placing bowls of water strategically around your home, including on your stovetop when you cook. If you use a humidifier, take care to follow the manufacturer’s care instructions and clean it regularly, so you don’t introduce bacteria to the air.

Reducing headaches and migraines

In a review of studies published in the Handbook of Clinical Neurology, those who drank four cups or more of water had significantly fewer hours of migraine pain than those who drank less (2). Headache intensity decreased as well.

Decreasing heart palpitations

Heart palpitations are very common and are broadly felt as a racing heart rate, skipped beat, pounding sensation or fluttering. Dehydration and exercise contributing to this (3). They occur mainly when we don’t hydrate before exercising. If you drink one glass of water before exercise and then drink during exercise, it will help avoid palpitations. Though these symptoms are not usually life-threatening, they can make you anxious.

Lowering heart attack risk

The Adventist Health Study showed that men who drank more water had the least risk of death from heart disease (4). Group one, which drank more than five glasses of water daily, had less risk than group two, which drank more than three. Those in group three, which drank fewer than two glasses per day, saw the lowest benefit, comparatively. For women, there was no difference between groups one and two, although both fared better than group three.

The reason for this effect, according to the authors, may relate to blood or plasma viscosity (thickness) and fibrinogen, a substance that helps clots form.

Decreased concentration and fatigue

Mild dehydration resulted in decreased concentration, subdued mood, fatigue and headaches in women in a small study (5). The mean age of participants was 23, and they were neither athletes nor highly sedentary. Dehydration was caused by walking on a treadmill with or without taking a diuretic (water pill) prior to the exercise. The authors concluded that adequate hydration was needed, especially during and after exercise.

I would also suggest, from my practice experience, hydration prior to exercise.

How much water should you drink?

How much water we need to drink depends on circumstances, such as diet, activity levels, environment and other factors. It is not true necessarily that we all should be drinking eight glasses of water a day. In a review article, researcher analyzed the data, but did not find adequate studies to suggest that eight glasses is the magic number (6). It may actually be too much for some patients.

You may also get a significant amount of water from the foods in your diet. Nutrient-dense diets, like Mediterranean or Dietary Approaches to Stop Hypertension (DASH) diets, have a plant-rich focus. Diets with a focus on fruits and vegetables increase water consumption (7). As you may know, 95 percent of the weights of many fruits and vegetables are attributed to water. An added benefit is an increased satiety level without eating calorically dense foods.

Remember that salty foods can dehydrate you, including breads and pastries, so try to avoid these.

Should you avoid caffeinated beverages?

In a review, it was suggested that caffeinated coffee and tea don’t increase the risk of dehydration, even though caffeine is a mild diuretic (8). With moderate amounts of caffeinated beverages, the liquid in them has a more hydrating effect than its diuretic effect. It is important to stay hydrated to avoid uncomfortable — and sometimes serious — complications. Diet is a great way to ensure that you get the triple effect of high nutrients, increased hydration and sense of feeling satiated without calorie-dense foods. However, don’t go overboard with water consumption, especially if you have congestive heart failure or open-angle glaucoma (9).

References:

(1) epa.gov (2) Handb Clin Neurol. 2010;97:161-72. (3) my.clevelandclinic.org. (4) Am J Epidemiol 2002 May 1; 155:827-33. (5) J. Nutr. February 2012 142: 382-388. (6) AJP – Regu Physiol. 2002;283:R993-R1004. (7) Am J Lifestyle Med. 2011;5(4):316-319. (8) Exerc Sport Sci Rev. 2007;35(3):135-140. (9) Br J Ophthalmol. 2005:89:1298–1301.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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Focus on healthier holiday dinner options. METRO photo

By David Dunaief, M.D.

Dr. David Dunaief

How hard is it to maintain healthy eating habits during the holidays? Even when we have the best of intentions, it’s hard to resist indulging in seasonal favorites and secret family recipes spread before us in a sprawling buffet.

Unfortunately, that one meal, and perhaps subsequent leftover meals, can have striking health consequences. And if you tend to overeat, be aware that there are significant short-term consequences of stuffing ourselves.

Not surprisingly, Americans tend to gain weight between Thanksgiving and New Year’s Day. This is when many accumulate the greatest weight gain of the year, and most do not lose the weight they gain during this time (1). If you can avoid weight gain during the holidays, think of the possibilities for the rest of the year.

Those who are obese and sedentary may already have heart disease. Overeating during a single meal increases your risk of heart attack over the near term, according to the American Heart Association (2). 

The good news is that, with a little planning, you can reap significant health benefits.

What can we do to turn a holiday dinner into a healthier meal? The secret is likely there on your table, hidden in the side dishes. By reconsidering how we prepare them, we can change the Thanksgiving health equation.

Focus on plants

Phytochemicals (plant nutrients) called carotenoids have antioxidant and anti-inflammatory effects and are found mostly in fruits and vegetables. Carotenoids make up a family of more than 600 different substances, such as beta-carotene, alpha-carotene, lutein, zeaxanthin, lycopene and beta-cryptoxanthin (3).

Carotenoids help to prevent and potentially reverse diseases, such as breast cancer, amyotrophic lateral sclerosis (Lou Gehrig’s disease), age-related macular degeneration, and cardiovascular disease — heart disease and stroke. Foods that contain these substances are dark green leafy vegetables, as well as orange, yellow and red vegetables and fruits.

Focus on presentation and perception

Despite the knowledge that healthy eating has long-term positive effects, there are obstacles to healthy eating. Two critical factors are presentation and perception.

Vegetables are often prepared in either an unappetizing way — steamed to the point of no return – or smothered in cheese and butter, negating any benefits. Fruits are buttered and sugared beyond recognition or used as a garnish for more decadent dishes.

Other plant-based foods, like whole grains and leafy greens, are relegated to side dishes or afterthoughts. 

Here are some suggestions to get you thinking about ways to shift the heavy holiday meal paradigm.

• Make healthy, plant-based dishes more appetizing. You don’t have to forgo signature dishes, but supplement tradition by adding mouthwatering vegetable-based dishes. One of my favorites is steamed “sweet” vegetables – cauliflower, broccoli, snap peas, onions and garlic. To make it sweet, I sauté it in a splash of citrus-infused balsamic vinegar and add sliced apples. Who doesn’t love poached apples? If you want to make this a primary dish, add diced tofu and/or garbanzo beans to make it more filling without overwhelming its delicate sweetness.

• Season your vegetables. Why would you serve vegetables without any seasoning? In my family, we season vegetables and make sauces to drizzle over them. Personally, I’m a fan of infused vinegars. Each adds a different flavor to the vegetables. 

My 17-year-old nephew, who has never liked cooked vegetables, fell in love with my wife’s roasted Brussels sprouts and broccoli while on summer vacation together. He texted her afterward to ask for the recipes, which are surprisingly simple. Now, he makes them for himself. Good resources for appealing vegetable dishes can be found at PCRM.org, mouthwateringvegan.com, and many other online resources.

• Replace refined grains. A study in the American Journal of Clinical Nutrition showed that replacing wheat or refined grains with whole wheat and whole grains significantly reduced central fat, or belly fat (4). Not only did participants lose subcutaneous fat found just below the skin, but also visceral adipose tissue, the fat that lines organs and causes chronic diseases such as cancer.

For even better results, consider substituting riced cauliflower or mashed cauliflower for rice or potatoes. You can purchase frozen riced cauliflower in many grocery stores now. Just be sure to get one that’s unsalted. If you prefer mashed, here’s a simple recipe for mashed cauliflower: https://medicalcompassmd.com/post/mashed-cauliflower-recipe-vegan. 

• Offer healthy snacks. Instead of laying out creamy dips, cheese platters and candies as snacks, choose whole grain brown rice crackers, baby carrots, cherry tomatoes and healthy dips like low-salt hummus and salsa. Help people choose wisely.

• Improve dessert options. Options might include dairy-free, sugar-free pumpkin pudding and fruit salad.

The goal should be to increase your nutrient-dense choices and decrease your empty-calorie foods.

Instead of making Thanksgiving a holiday of regret, eating foods that cause weight gain, fatigue and that increase your risk for chronic diseases, promote good health while serving a delicious, festive meal.

References:

(1) N Engl J Med 2000; 342:861-867. (2) www.heart.org. (3) Crit Rev Food Sci Nutr 2010;50(8):728–760. (4) Am J Clin Nutr 2010 Nov;92(5):1165-71.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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METRO photo

By David Dunaief, M.D.

Dr. David Dunaief

As the weather has started to turn cooler, I’ve been hearing a lot more sniffling and sneezing. It’s a good reminder that cold season is upon us. Most frequently caused by the human rhinovirus, a cold’s effects can range from an annoyance to more serious symptoms that put us out of commission for a week or more.

The good news is that it may be possible to reduce the symptoms — or even reduce the duration — of a common cold with lifestyle management and a few dietary supplements.

What can you do to relieve cold symptoms?

If you have congestion or coughing symptoms, sitting in a steamy bathroom may help. It simulates a medical mist tent, moisturizing your nasal and bronchial passages. Dry heat is your enemy when you’re experiencing cold symptoms. If your home or office is dry, use a cool mist humidifier to put some humidity back in the air.

Eating salt-free soups loaded with vegetables can help increase your nutrient intake and loosen congestion. I start with a sodium-free soup base and add in spices, onions, spinach, broccoli, and other greens until it’s more stew-like than soup-like. Caffeine-free hot teas will also help loosen congestion and keep you hydrated.

Does Zinc reduce a cold’s duration?

You may have heard that zinc helps treat a cold. I have good news: it does!

According to a meta-analysis that included 13 trials, zinc in any form taken within 24 hours of your first symptoms may reduce the duration of a cold by at least one day (1). Even more importantly, zinc may significantly reduce the severity of your symptoms throughout, improving your quality of life. This may be due to an anti-inflammatory effect.

One of the studies, published in the Journal of Infectious Disease, found that zinc reduced the duration of the common cold by almost 50 percent from seven days to four days, cough symptoms were reduced by greater than 60 percent, and nasal discharge was reduced by 33 percent (2). Researchers used 13 grams of zinc acetate per lozenge taken three-to-four times daily for four days. This translates into 50-65 mg per day.

Be aware, however, that there are a few serious concerns with zinc. First, the dose researchers used was well above the maximum intake recommended by the National Institutes of Health, which is 40 mg per day for adults. This maximum intake number is less for those 18 and younger (3). Also, the FDA has warned against nasal zinc administration with sprays, which has led to permanent loss of smell for some people.

Not all studies showed a benefit. Also, studies where there was a proven benefit may have used different formulations, delivery systems and dosages, and there is no current recommendation or consensus on what is optimal.

Does vitamin C help cure a cold?

According to a review of 29 trials with a combined population of over 11,000, vitamin C did not show any significant benefit in preventing or reducing cold symptoms or duration in the general population (4). With this in mind, there may be no reason to take mega-doses of vitamin C for cold prevention and treatment. However, in a sub-group of serious marathon runners and other athletes, there was substantial risk reduction when taking vitamin C prophylactically; they caught 50 percent fewer colds.

Is echinacea a possible cure?

After review of 24 controlled clinical trials, the Cochrane Database notes that the jury is still out on the effectiveness of echinacea for treatment of duration and symptoms, but the results are disappointing and inconsistent (5). There are no valid randomized clinical trials showing cold prevention using echinacea.

In a randomized controlled trial with 719 patients, echinacea was no better than placebo for the treatment of the common cold (6).

Should you exercise or not?

People with colds need rest — at least that was the theory. However, a study published in the British Journal of Sports Medicine may change this perception. Participants who did aerobic exercise at least five days per week, versus one or fewer days per week, had a 43 percent reduction in the number of days with colds over two 12-week periods during the fall and winter months (7). Even more interesting is that those who reported themselves as being highly fit had a 46 percent reduction in the number of days with colds compared to those who perceived themselves to have low fitness. Their cold symptoms were reduced significantly as well.

What are our takeaways?

For symptom relief, simple home remedies may actually work better than supplements. Zinc might be useful in treating and preventing the common cold. Use caution with dosing, however, to reduce its side effects. Echinacea and vitamin C have not been proven to provide benefits, but don’t stop taking them if you feel they help you. Lastly, exercise might actually reduce your cold’s duration.

References:

(1) Open Respir Med J. 2011; 5: 51–58. (2) J Infect Dis. 2008 Mar 15;197(6):795-802. (3) ods.od.nih.gov. (4) Cochrane Database of Systematic Reviews 2013, Issue 1. Art. No.: CD000980. (5) Cochrane Database of Systematic Reviews 2014, Issue 2. Art. No.: CD000530. (6) Ann Intern Med. 2010;153(12):769-777. (7) British Journal of Sports Medicine 2011;45:987-992.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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 Increasing tomato sauce consumption is a simple way to                      decrease your prostate cancer risk

By David Dunaief, M.D.

Dr. David Dunaief

Welcome to “Movember,” a month dedicated to raising money to fund awareness and research initiatives focused on men’s health (1). An initiative of the Movember Foundation, its efforts have funded 1,320 men’s health projects globally, with focuses on mental health, suicide prevention, testicular and prostate cancer.

Its prostate cancer initiatives focus on early detection, treatment options, and quality of life considerations for different treatments. I’d like to add prevention options to the conversation. Regardless of your family history, you can reduce your risk of prostate cancer with some simple lifestyle changes.

How does obesity affect prostate cancer risk?

Obesity may slightly decrease the risk of nonaggressive prostate cancer; however, it may also increase your risk of aggressive disease (2). Because larger prostates make biopsies less effective, the study’s authors attribute a lower incidence of nonaggressive cancer to the possibility that it is more difficult to detect it in obese men. Ultimately, those who are obese have a greater risk of dying from prostate cancer when it is diagnosed.

Does consuming animal fat affect your risk?

There appears to be a direct effect between the amount of animal fat we consume and the incidence of prostate cancer. In the Health Professionals Follow-up Study, those who consumed the highest amount of animal fat had a 63 percent increased risk of advanced or metastatic prostate cancer, compared to those who consumed the least (3).

Also, in this study, red meat contributed to an even greater, approximately 2.5-fold, increased risk of advanced disease. If you continue to eat red meat, reduce your frequency as much as possible, targeting once a month or quarter.

In another large, prospective observational study, the authors concluded that red and processed meats increase the risk of advanced prostate cancer through heme iron, barbecuing/grilling and nitrate/nitrite content (4).

Should you cook your tomatoes?

Tomato sauce has been shown to potentially reduce the risk of prostate cancer. However, uncooked tomatoes have not demonstrated the same beneficial effects. It is believed that lycopene, which is a type of carotenoid found in tomatoes, is central to this benefit. Tomatoes need to be cooked to release lycopene (5). 

As part of this larger study, 32 patients with localized prostate cancer consumed 30 mg of lycopene per day via tomato sauce-based dishes over a three-week period before a radical prostatectomy. Key cancer indicators improved, and tissue tested before and after the intervention showed dramatic improvements in DNA damage in leukocyte and prostate tissue (6). 

In a prospective study involving 47,365 men who were followed for 12 years, prostate cancer risk was reduced by 16 percent with higher lycopene intake from a variety of sources (7). When the authors looked at tomato sauce alone, they saw a 23 percent risk reduction when comparing those who consumed at least two servings a week to those who consumed less than one serving a month. The reduction in severe, or metastatic, prostate cancer risk was even greater, at 35 percent. This was a statistically significant reduction in risk with a very modest amount of tomato sauce.

Unfortunately, many brands of prepared tomato sauce are loaded with salt, which has its own health risks. I recommend to patients that they either make their own sauce or purchase prepared sauce made with low sodium or no salt.

Do cruciferous vegetables help?

While results among studies vary, they all agree: consuming vegetables, especially cruciferous vegetables, helps reduce prostate cancer risk.

In a case-control study, participants who consumed at least three servings of cruciferous vegetables per week, versus those who consumed less than one per week, saw a 41 percent reduction in prostate cancer risk (8). What’s even more impressive is the effect was twice that of tomato sauce, while the intake was similarly modest. Cruciferous vegetables include broccoli, cauliflower, bok choy, kale and arugula, to name a few.

A separate study of 1,338 patients with prostate cancer in a larger cancer screening trial concluded that, while vegetable and fruit consumption did not appear to lower outright prostate cancer risk, increased consumption of cruciferous vegetables — specifically broccoli and cauliflower — did reduce the risk of aggressive prostate cancer, particularly of more serious stage 3 and 4 tumors (9). These results were seen with consumption of just one or more servings of each per week, when compared to less than one per month.

What about PSA screening?

In a retrospective analysis of 128 U.S. Veteran’s Health Administration facilities, those where Prostate-specific antigen (PSA) screening was less frequent found higher rates of metastatic prostate cancer (10). During the study period from 2005 to 2019, researchers found an inverse relationship between PSA screening rates and metastatic prostate cancer. When screening rates decreased, rates of metastatic cancer increased five years later, while in facilities where screening rates increased, metastatic cancer rates decreased. 

While the study authors caution about extending these findings to the general population, they do suggest they could help inform conversations between men and their physicians about the value of PSA screening. 

When it comes to preventing prostate cancer and improving prostate cancer outcomes, lifestyle modifications, including making dietary changes, can reduce your risk significantly.

References:

(1) www.movember.com. (2) Epidemiol Rev. 2007;29:88. (3) J Natl Cancer Inst. 1993;85(19):1571. (4) Am J Epidemiol. 2009;170(9):1165. (5) Exp Biol Med (Maywood). 2002; 227:914-919. (6) J Natl Cancer Inst. 2002;94(5):391. (7) Exp Biol Med (Maywood). 2002 Nov;227(10):886-93. (8) J Natl Cancer Inst. 2000;92(1):61. (9) J Natl Cancer Inst. 2007;99(15):1200-1209. (10) JAMA Oncol. 2022 Dec 1;8(12):1747-1755.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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Increasing fiber consumption is crucial

By David Dunaief

Dr. David Dunaief

According to the Centers for Disease Control and Prevention, about 6.7 percent of U.S. adults over the age of 19 have coronary artery disease (CAD), the most common type of heart disease (1). Annually in the U.S., there are 805,000 heart attacks. Of these, 200,000 occur in those who’ve already had a first heart attack.

Among the biggest contributors to heart disease risk are high blood pressure, high cholesterol, and smoking. In addition, if you have diabetes or are overweight or obese, your risk increases significantly. In addition, lifestyle factors contribute to your risk; poor diet, lack of physical activity and high alcohol consumption are among the most significant contributors.

This is where we can dramatically reduce the occurrence of CAD. Evidence continues to highlight lifestyle changes, including diet, as the most important factors in preventing heart disease. Key changes that pack a wallop include the consumption of chocolate, legumes, nuts, fiber and omega-3 polyunsaturated fatty acids (PUFAs).

Chocolate – really?

Preliminary evidence shows that two pieces of chocolate a week may decrease the risk of a heart attack by 37 percent, compared to those who consume less (2). The benefit may be attributed to micronutrients referred to as flavanols. 

However, the authors warned against the idea that more is better. High fat and sugar content and chocolate’s caloric density may have detrimental effects when consumed at much higher levels. There is a fine line between potential benefit and harm. 

I usually recommend that patients have one to two squares — about one-fifth to two-fifths of an ounce — of high-cocoa-content dark chocolate daily. Aim for chocolate labeled with 80 percent cocoa content.

Alternatively, you can get the benefits without the fat and sugar by adding unsweetened, non-Dutched cocoa powder to a fruit and vegetable smoothie.

Who says prevention has to be painful?

Will increasing dietary fiber help?

We can significantly reduce our risk of heart disease if we increase our consumption of fiber to reach recommended levels. Good sources of fiber are fruits and vegetables eaten with edible skin or peel, beans and lentils, and whole grains.

Fiber has a dose-response relationship to reducing risk. In other words, the more fiber you eat, the greater your risk reduction. In a meta-analysis of 10 studies, results showed that for every 10-gram increase in fiber, there was a corresponding 14 percent reduction in the risk of a cardiovascular event and a 27 percent reduction in the risk of heart disease mortality (3). The authors analyzed data that included over 90,000 men and 200,000 women.

According to a 2021 analysis of National Health and Nutrition Examination Survey (NHANES) data from 2013 to 2018, only 5 percent of men and 9 percent of women get the recommended daily amount of fiber (4). The average American consumes about 16 grams per day of fiber (5).

So, how much is “enough”? The Academy of Nutrition and Dietetics recommends 14 grams of fiber for each 1,000 calories consumed, or roughly 25 grams for women and 38 grams for men (6).

Legumes have an outsized effect

In a prospective (forward-looking) cohort study, the First National Health and Nutrition Examination Survey Epidemiologic Follow-up Study, legumes reduced the risk of coronary heart disease by a significant 22 percent (7). Those who consumed four or more servings per week saw this effect when compared to those who consumed less than one serving per week. The legumes used in this study included beans, peas and peanuts. There were over 9,500 men and women involved, and the study spanned 19 years of follow-up.

I recommend that patients consume at least one to two servings a day. Imagine the impact that could have, compared to the modest four servings per week used to reach statistical significance in this study.

Focus on healthy nuts

In a study with over 45,000 men, there were significant reductions in CAD with omega-3 polyunsaturated fatty acids (PUFAs). Both plant-based and seafood-based omega-3s showed these effects (8). Good sources of omega-3s from plant-based sources include nuts, such as walnuts, and ground flaxseed. Of course, be cautious about consuming too many nuts, since they’re also calorically dense.

Your ultimate goal should be to become “heart attack proof,” a term used by Dr. Sanjay Gupta and reinforced by Dr. Dean Ornish. While even modest dietary changes can significantly reduce your risk, the more significant the lifestyle changes you make, the closer you will come to achieving this goal.

References:

(1) cdc.gov. (2) BMJ 2011; 343:d4488. (3) Arch Intern Med. 2004 Feb 23;164(4):370-376. (4) nutrition.org (5) NHANES 2009-2010 Data Brief No. 12. Sep 2014. (6) eatright.org. (7) Arch Intern Med. 2001 Nov 26;161(21):2573-2578. (8) Circulation. 2005 Jan 18;111(2):157-164.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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Getting an annual eye exam is crucial

By David Dunaief, M.D.

Dr. David Dunaief

If you have diabetes, you are at high risk of vascular complications that can be life-altering. Among these are macrovascular complications, like coronary artery disease and stroke, and microvascular effects, such as diabetic nephropathy and retinopathy.

Here, we will talk about diabetic retinopathy (DR), the number one cause of blindness among U.S. adults, ages 20 to 74 years old (1). Diabetic retinopathy is when the blood vessels that feed the light-sensitive tissue at the back of your eye are damaged, and it can progress to blurred vision and blindness.

As of 2019, only about 60 percent of people with diabetes had a recommended annual screening for DR (2). Why does this matter? Because the earlier you catch it, the more likely you will be able to prevent or limit permanent vision loss.

Over time, DR can lead to diabetic macular edema (DME). Its signature is swelling caused by fluid accumulating in the macula (3). An oval spot in the central portion of the retina, the macula is sensitive to light. When fluid builds up from leaking blood vessels, it can cause significant vision loss.

Those with the longest duration of diabetes have the greatest risk of DME. Unfortunately, many patients are diagnosed with DME after it has already caused vision loss. If not treated early, patients can experience permanent damage (2).

In a cross-sectional study using NHANES data, among patients with DME, only 45 percent were told by a physician that diabetes had affected their eyes (4). Approximately 46 percent of patients reported that they had not been to a diabetic nurse educator, nutritionist or dietician in more than a year — or never.

Unfortunately, the symptoms of vision loss don’t necessarily occur until the latter stages of the disorder, often after it’s too late to reverse the damage.

What are treatment options for Diabetic Macular Edema?

While DME has traditionally been treated with lasers, injections of anti-VEGF medications may be more effective. These eye injections work by inhibiting overproduction of a protein called vascular endothelial growth factor (VEGF), which contributes to DR and DME (5). The results from a randomized controlled trial showed that eye injections with ranibizumab (Lucentis) in conjunction with laser treatments, whether laser treatments were given promptly or delayed for at least 24 weeks, were equally effective in treating DME (6). Other anti-VEGF drugs include aflibercept (Eylea) and bevacizumab (Avastin).

Do diabetes treatments reduce risk of Diabetic Macular Edema?

You would think that using medications to treat type 2 diabetes would prevent DME from occurring as well. However, in the THIN trial, a retrospective study, a class of diabetes drugs, thiazolidinediones, which includes Avandia and Actos, actually increased the occurrence of DME compared to those who did not use these oral medications (7). Those receiving these drugs had a 1.3 percent incidence of DME at year one, whereas those who did not had a 0.2 percent incidence. This incidence was persistent through the 10 years of follow-up. Note that DME is not the only side effect of these drugs. There are important FDA warnings for other significant issues.

To make matters worse, those who received both thiazolidinediones and insulin had an even greater incidence of DME. There were 103,000 diabetes patients reviewed in this trial. It was unclear whether the drugs, because they were second-line treatments, or the severity of the diabetes itself may have caused these findings.

This contradicts a previous ACCORD eye sub-study, a cross-sectional analysis, which did not show an association between thiazolidinediones and DME (8). This study involved review of 3,473 participants who had photographs taken of the fundus (the back of the eye).

What does this ultimately mean? Both studies had weaknesses. It was not clear how long the patients had been using the thiazolidinediones in either study or whether their sugars were controlled and to what degree. The researchers were also unable to control for all other possible confounding factors (9). There are additional studies underway to clarify these results.

Can glucose control and diet improve outcomes?

The risk of progression of diabetic retinopathy was significantly lower with intensive blood sugar controls using medications, one of the few positive highlights of the ACCORD trial (10). Unfortunately, medication-induced intensive blood sugar control also resulted in increased mortality and no significant change in cardiovascular events. However, an inference can be made: a nutrient-dense, plant-based diet that intensively controls blood sugar is likely to decrease the risk of diabetic retinopathy and further vision complications (11, 12).

If you have diabetes, the best way to avoid diabetic retinopathy and DME is to maintain good control of your sugars. Also, it is imperative that you have a yearly eye exam by an ophthalmologist, so that diabetic retinopathy is detected as early as possible, before permanent vision loss occurs. If you are taking the oral diabetes class thiazolidinediones, this is especially important.

References:

(1) cdc.gov. (2) www.aao.org/ppp. (3) www.uptodate.com. (4) JAMA Ophthalmol. 2014;132:168-173. (5) Community Eye Health. 2014; 27(87): 44–46. (6) ASRS. Presented 2014 Aug. 11. (7) Arch Intern Med. 2012;172:1005-1011. (8) Arch Ophthalmol. 2010 March;128:312-318. (9) Arch Intern Med. 2012;172:1011-1013. (10) www.nei.nih.gov. (11) OJPM. 2012;2:364-371. (12) Am J Clin Nutr. 2009;89:1588S-1596S.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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Long-term PPI use increases serious risks. Stock photo

By David Dunaief, M.D,

Dr. David Dunaief

Reflux is common after a large meal. This is when stomach contents flow backward up the esophagus. It occurs because the valve between the stomach and the esophagus, the lower esophageal sphincter, relaxes for no apparent reason. Many incidences of reflux are normal, especially after a meal, and don’t require medical treatment (1).

However, gastroesophageal reflux disease (GERD) is a more serious disorder. It can have long-term health effects, including erosion or scarring of the esophagus, ulcers, and increased cancer risk. Researchers estimate it affects as much as 28 percent of the U.S. adult population (2). No wonder pharmaceutical firms line drug store shelves with over-the-counter and prescription solutions.

GERD risk factors range from lifestyle — obesity, smoking and diet — to medications, like calcium channel blockers and antihistamines. Other medical conditions, like hiatal hernia and pregnancy, also contribute (3). Dietary triggers, such as spicy, salty, or fried foods, peppermint, and chocolate, can also play a role.

One study showed that both smoking and salt consumption increased GERD risk significantly, with increases of 70 percent in people who smoked or who used table salt regularly (4). Let’s examine available treatments and ways to reduce your risk.

What medical options can help with GERD?

The most common and effective medications for treating GERD are H2 receptor blockers (e.g., Zantac and Tagamet), which partially block acid production, and proton pump inhibitors (e.g., Nexium and Prevacid), which almost completely block acid production (5). Both classes of medicines have two levels: over-the-counter and prescription strength. Let’s focus on proton pump inhibitors (PPIs), for which just over 90 million prescriptions are written every year in the U.S. (6).

The most frequently prescribed PPIs include Prilosec (omeprazole) and Protonix (pantoprazole). Studies show they are effective with short-term use in treating Helicobacter pylori-induced peptic ulcers, GERD symptoms, and gastric ulcer prophylaxis associated with NSAID use (aspirin, ibuprofen, etc.) as well as upper gastrointestinal bleeds.

Most of the data in the package inserts is based on short-term studies lasting weeks, not years. The landmark study supporting long-term use approval was only one year. However, maintenance therapy usually continues over many years.

Concerns about long-term usage effects and overprescribing have led to calls among pharmacists to take an active role in educating patients about their risks – along with educating patients about the need to take them before eating for them to work (7).

What are PPI risks?

Side effects after years of use can include increased risk of bone fractures and calcium malabsorption; Clostridium difficile (C. difficile), a serious bacterial infection in the intestines; potential vitamin B12 deficiencies; and weight gain (8).

The FDA has amplified its warnings about the increased risk of C. difficile, which must be treated with antibiotics. Unfortunately, it only responds to a few antibiotics, and that number is dwindling. Patients need to contact their physicians if they develop diarrhea when taking PPIs and the diarrhea doesn’t improve (9).

Suppressing stomach acid over long periods can also result in malabsorption issues. In a study where PPIs were associated with B12 malabsorption, it usually took at least three years’ duration to cause this effect. While B12 was not absorbed properly from food, PPIs did not affect B12 levels from supplementation (10). If you are taking a PPI chronically, have your B12 and methylmalonic acid (a metabolite of B12) levels checked and discuss supplementation with your physician.

Before you stop taking PPIs, consult your physician. Rebound hyperacidity can result from stopping abruptly.

What non-medical options can improve GERD?

A number of modifications can improve GERD, such as raising the head of the bed about six inches, not eating prior to bedtime and obesity treatment, to name a few (11). 

Fiber and exercise. The study that quantified the increased risks of smoking and salt also found that fiber and exercise both had the opposite effect, reducing GERD risk (4). An analysis by Journal Watch suggests that the fiber effect may be due to its ability to reduce nitric oxide production, a relaxant for the lower esophageal sphincter (12).

Manage weight. In one study, researchers showed that obesity increases pressure on the lower esophageal sphincter significantly (13). Intragastric (within the stomach) pressures were higher in both overweight and obese patients on inspiration and on expiration, compared to those with a “normal” body mass index.

Avoid late night eating. One of the most powerful modifications we can make to avoid GERD is among the simplest. A study showed a 700 percent increased risk of GERD for those who ate within three hours of bedtime, compared to those who ate four hours or more before bedtime (14).

While drugs have their place in the arsenal of options to treat GERD, lifestyle changes are the first, safest, and most effective approach in many instances. 

References:

(1) Gastroenterol Clin North Am. 1996;25(1):75. (2) Gut. 2014; 63(6):871-80. (3) niddk.nih.gov. (4) Gut 2004 Dec; 53:1730-1735. (5) Gastroenterology. 2008;135(4):1392. (6) Kane SP. Proton Pump Inhibitor, ClinCalc DrugStats Database, Version 2022.08. Updated August 24, 2022. Accessed October 11, 2022. (7) US Pharm. 2019:44(12):25-31. (8) World J Gastroenterol. 2009;15(38):4794–4798. (9) FDA.gov. (10) Linus Pauling Institute; lpi.oregonstate.edu. (11) Arch Intern Med. 2006;166:965-971. (12) JWatch Gastro. Feb. 16, 2005. (13) Gastroenterology 2006 Mar; 130:639-649. (14) Am J Gastroenterol. 2005 Dec;100(12):2633-2636.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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'I have seen very good results when treating patients who have eczema with dietary changes.- Dr. David Dunaief METRO photo
New treatments are evolving

By David Dunaief, M.D.

Dr. David Dunaief

If you have eczema, you’re familiar with its symptoms, which can include rashes, itching, pain and redness. What may not be as clear are its causes and potential implications.

Eczema is a chronic inflammatory process, and it’s likely caused by a combination of genetics and lifestyle choices (1).

While there is no cure, some treatments can ease symptoms and reduce flare-ups. These range from over-the-counter creams and lotions, antihistamines for itchiness, prescription steroid creams, oral steroids, and injectable biologics. Some sufferers use phototherapy for severe cases, but there’s not a lot of research suggesting this is effective. Interestingly, diet may play an important role.

Two separate studies have shown an association between eczema and fracture risk, which we will investigate further.

How does diet affect eczema?

In a Japanese study involving over 700 pregnant women and their offspring, results showed that when the women ate either a diet high in green and yellow vegetables, beta carotene or citrus fruit there was a significant reduction in the risk of the child having eczema of 59 percent, 48 percent and 47 percent, respectively, when comparing highest to lowest consumption quartiles (2).

Elimination diets may also play a role. One study’s results showed when eggs were removed from the diet of those who were allergic, according to IgE testing, eczema improved significantly (3).

From an anecdotal perspective, I have seen very good results when treating patients who have eczema with dietary changes. My patient population includes many patients who suffer from some level of eczema. For example, a young adult had eczema mostly on his extremities. When we first met, these were angry, excoriated, erythematous and scratched lesions. However, after several months of a vegetable-rich diet, the patient’s skin improved significantly.

Do supplements help reduce eczema symptoms?

There are two well-known supplements for helping to reduce inflammation, evening primrose oil and borage oil. Are these supplements a good replacement for – or addition to – medications? The research is really mixed, leaning toward ineffective. There are also some important concerns about them.

In a meta-analysis of seven randomized controlled trials, evening primrose oil was no better than placebo in treating eczema (4).

The researchers also looked at eight studies of borage oil and found there was no difference from placebo in terms of symptom relief. While these supplements only had minor side effects in the study, they can interact with other medications. For example, evening primrose oil in combination with aspirin can cause clotting problems (5).

The upshot? Don’t expect supplements to provide significant help. If you do try them, be sure to consult with your physician first.

Are biologics a good alternative?

Injectable biologics are among the newest treatments and are generally recommended when other treatment options have failed (6). There are two currently approved by the FDA, dupilumab and tralokinumab.

In trials, these injectable drugs showed good results, improving outcomes for moderate to severe eczema sufferers when topical steroids alone were not effective. Like other monoclonal antibodies, they work by interfering with parts of your immune system. They suppress messengers of the white blood cells, called interleukins. This leaves a door open for side effects, like serious infections.

Does eczema affect bone health?

Several studies have examined the relationship between eczema and broken bones. One observational study of 34,500 patients showed that those with eczema had a 44 percent increased risk of injury causing limitation and a 67 percent risk of bone fracture and bone or joint injury for those 30 years and older (7).

If you have both fatigue or insomnia in combination with eczema, you are at higher risk for bone or joint injury than having one or the other alone. The researchers postulated that corticosteroids used in treatment could be one reason, in addition to chronic inflammation, which may also contribute to bone loss risk. 

Steroids may weaken bone, ligaments and tendons and may cause osteoporosis by decreasing bone mineral density.

A study of over 500,000 patients tested this theory and found that the association between major osteoporotic fractures and atopic eczema remained, even after adjusting for a range of histories with oral corticosteroids (8). Also, fracture rates were higher in those with severe atopic eczema.

For those who have eczema, it may be wise to have a DEXA (bone) scan.

Eczema exists on a spectrum from annoying to significantly affecting a patient’s quality of life. Supplements may not be the solution, at least not borage oil nor evening primrose oil. However, there may be promising medications for the hard to treat. It might be best to avoid long-term systemic steroids because of their long-term side effects. Diet adjustments appear to be very effective, at least at the anecdotal level.

References:

(1) Acta Derm Venereol (Stockh) 1985;117 (Suppl.):1-59. (2) Allergy. 2010 Jun 1;65(6):758-765. (3) J Am Acad Dermatol. 2004;50(3):391-404. (4) Cochrane Database Syst Rev. 2013;4:CD004416. (5) mayoclinic.org (9) Medscape.com. (6) JAMA Dermatol. 2015;151(1):33-41. (7) J Allergy Clin Immunol Pract. 2021 Sep 24;S2213-2198(21)01018-7. (8) nationaleczema.org.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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Quality years are achievable. METRO photo

By David Dunaief, M.D.

Dr. David Dunaief

On Sunday, former U.S. President Jimmy Carter celebrated his 99th birthday. While he is currently in hospice care, most of his last decade, he has been healthy and active.

Living into your 90s is becoming more common. According to the National Institutes of Health, those in the U.S. who were more than 90 years old increased by 2.5 times over a 30-year period from 1980 to 2010 (1). This group is among what researchers refer to as the “oldest-old,” which includes those aged 85 and older.

What do they all have in common, other than age? According to one study, they tend to have fewer chronic medical conditions or diseases. Because of this, they tend to have greater physical functioning and mental acuity, along with a better quality of life (2).

In a study of centenarians, genetics played a significant role. Characteristics of this group were that they tended to be healthy and then die rapidly, without prolonged suffering (3). In other words, they grew old “gracefully,” staying mobile and mentally alert.

Factors that predict one’s ability to reach this exclusive club may involve both genetics and lifestyle choices. Let’s look at the research.

How important is exercise?

We’re repeatedly nudged to exercise. Why? Results of one study with over 55,000 participants from ages 18 to 100 showed that five-to-ten minutes of daily running, regardless of the pace, can significantly impact our life span by decreasing cardiovascular and all-cause mortality (4).

Amazingly, even if participants ran fewer than six miles a week at a pace slower than 10-minute miles, and even if they ran only one to two days a week, there was still a decrease in mortality compared to nonrunners. Those who ran for this very limited amount of time and modest pace potentially added three years to their life span.

An accompanying editorial to this study noted that more than 50 percent of people in the United States do not meet the current recommendation of at least 30 minutes of moderate exercise per day (5).

A study presented at the European Society of Cardiology Congress in 2022 found that those 85 and older reduced the risk of all-cause mortality 40 percent by walking just 60 minutes a week at a pace that qualified as physical activity, not even exercise (6).

Does reducing animal protein consumption help?

A long-standing dietary paradigm has been that we need to eat sufficient animal protein. However, many are questioning the value of this, especially as it relates to longevity.

In an observational study of 7,000 participants from ages 50 to 65, results show that those who ate a high-protein diet with greater than 20 percent of their calories from protein had a had a 75 percent increase in overall mortality, a four-times increased risk of cancer mortality, and a four-times increased risk of dying from diabetes during the following 18 years (7). 

However, this did not hold true if the protein source was plants. In fact, a high-protein plant diet may reduce the risks, not increase them. The reason, according to the authors, is that animal protein may increase insulin growth factor-1 and growth hormones that have detrimental effects on the body.

The Adventists Health Study 2 trial reinforced these findings. It looked at Seventh-day Adventists, a group that emphasizes a plant-based diet, and found that those who ate animal protein once a week or less had a significantly reduced risk of dying over the next six years compared to those who were more frequent meat eaters (8). This was an observational trial with over 73,000 participants and a median age of 57 years old.

What effect does systemic inflammation have?

In the Whitehall II study, a specific marker for inflammation was measured, interleukin-6. The study showed that higher levels did not bode well for participants’ healthy longevity (9). If participants had elevated IL-6 (>2.0 ng/L) at both baseline and at the end of the 10-year follow-up period, their probability of healthy aging decreased by almost half.

The good news is that inflammation can be improved significantly with lifestyle changes.

The takeaway from this study is that IL-6 is a relatively common biomarker for inflammation. It can be measured with a simple blood test offered by most major laboratories. This study involved 3,044 participants over the age of 35 who did not have a stroke, heart attack or cancer at the beginning of the study.

The bottom line is that, although genetics are important for longevity, so too are lifestyle choices. A small amount of exercise and consuming more plant protein than animal protein can contribute to a substantial increase in healthy life span. IL-6 may be a useful marker for inflammation, which could help predict healthy or unhealthy outcomes. Your doctor can test to see if you have an elevated IL-6. If you do, lifestyle modifications may be able to reduce these levels.

References:

(1) nia.nih.gov. (2) J Am Geriatr Soc. 2009;57:432-440. (3) Future of Genomic Medicine (FoGM) VII. Presented March 7, 2014. (4) J Am Coll Cardiol. 2014;64:472-481. (5) J Am Coll Cardiol. 2014;64:482-484. (6) European Society of Cardiology Congress, Aug. 28, 2022. (7) Cell Metab. 2014;19:407-417. (8) JAMA Intern Med. 2013;173:1230-1238. (9) CMAJ. 2013;185:E763-E770.

Dr. David Dunaief is a speaker, author and local lifestyle medicine physician focusing on the integration of medicine, nutrition, fitness and stress management. For further information, visit www.medicalcompassmd.com or consult your personal physician.

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