Vitamins, minerals & supplements Archive

Here's a host of ideas that support healthy eating and exercise habits.

This holiday season, how about giving the gift of good health? From kitchen tools to a session with a personal trainer, there are many thoughtful presents that can have a lasting impact on a person's cardiovascular health. Here are suggestions from several Harvard experts.

Kitchen tools and gadgets

"Many of my patients want to eat healthier, and one good strategy is to prepare more meals at home. Because this takes time, kitchen tools and gadgets really can be helpful," says registered dietitian Kathy McManus, director of the Department of Nutrition at Harvard-affiliated Brigham and Women's Hospital. One great time-saving tool is an Instant Pot, which works as a pressure cooker, slow cooker, yogurt maker, rice cooker, and steamer, she says.

These drugs are mainstays for preventing heart disease. Are they safe and effective in older people?

Low-dose aspirin and statins are both common, inexpensive drugs that help prevent the two root causes of most heart attacks — blood clots and cholesterol-laden plaque clogging the arteries of the heart. In recent years, a number of studies have helped experts refine their advice as to who should or should not take these medications.

However, evidence-based advice for people in their mid-70s and beyond is a bit harder to come by. Historically, most drug trials have included only a small proportion of people 75 and older, in part because there are fewer people in that age demographic. Also, older people tend to have other chronic health conditions. As such, they may be more prone to drug side effects, making doctors reluctant to enroll them in clinical trials.

In Southern states, people often eat black-eyed peas and collard greens on New Year's Day, a tradition believed to bring wealth and good fortune in the coming year. The classic recipe for this dish, called Hoppin' John, often includes some form of pork. But the Half-cup Habit website has a vegetarian version; see https://pulses.org/nap/recipe/hoppin-john.

It may be just luck, but black-eyed peas seem to be less likely than black beans or pinto beans to cause intestinal gas, according to a small study. All legumes contain fiber and substances known as oligosaccharides that can't be broken down by human digestive enzymes. But the billions of bacteria living in the gut can digest oligosaccharides, often creating gas in the process.

Age, family history, and other risk factors determine if daily aspirin can help prevent a heart attack or stroke.

For many of us, aspirin was the go-to medicine of our youth. Everything from headaches, colds, and general aches and pains were treated with two aspirin and a glass of water.

For decades, aspirin was widely believed to be a safe way to protect healthy adults from heart attacks and strokes. But over the past couple years, new research has questioned this premise and many doctors have already stopped prescribing aspirin for adults at low risk of cardiovascular disease.

Research we're watching

While eating more foods rich in omega-3 fatty acids may lower the risk of heart attack, that doesn't seem to reduce the risk of developing diabetes, according to a study published Aug. 24 in The BMJ. Prompted by past findings that this type of healthy fat might reduce diabetes risk and improve blood sugar (glucose) control, researchers decided to look further into the issue. They reviewed 83 randomized trials involving more than 120,000 people, both with and without diabetes. Each trial went on for six months or longer. These trials looked at whether increasing consumption of omega-3 fats (derived from fish or plants), omega-6 fats (such as those in soybean or corn oil), or total polyunsaturated fats could help lower blood glucose or reduce the risk of developing diabetes. They found that increasing the amount of omega-3, omega-6, or total polyunsaturated fats in the diet over an average study period of nearly three years didn't seem to have any effect on glucose metabolism or diabetes risk. It didn't matter whether the additional healthy fats came from supplements, enriched foods, or foods that were naturally rich in these fats.

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Research we're watching

Women at high risk for breast cancer might benefit from taking medication to prevent the disease, says a new recommendation from the U.S. Preventive Services Task Force (USPSTF), a national group of experts. Medications such as tamoxifen (Nolvadex), raloxifene (Evista), and aromatase inhibitors have been shown to help prevent invasive, estrogen receptor-positive breast cancer, but they can cause serious side effects, such as other cancers and blood clots. For some women, the potential benefits of these drugs outweigh those risks. The USPSTF, however, recommends against routine use of these medications for women who are not at high risk for breast cancer, because the potential benefit is much smaller. Women who are over age 35 and are at high risk for breast cancer or who have had previous benign breast lesions (such as atypical ductal or lobular hyperplasia or lobular carcinoma in situ) might want to discuss this recommendation with their doctor. The USPSTF encouraged doctors to weigh the risk of breast cancer against potential drawbacks of the medications and the individual woman's risk for adverse effects.

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The holiday season presents a challenge to even to those most dedicated to health-conscious eating. Generally, people tend to gain a little weight during the holidays, but a study found that it is possible to avoid extra pounds.

Over the past decade, research has revealed that the majority of patients treated for cancer experience difficulties with memory, attention, concentration, and thinking. There are several lifestyle actions that can help improve these symptoms, as well as certain medications.

New recommendations could affect millions of people.

You may remember a time when taking a daily baby aspirin was almost a rite of passage for generally healthy older adults. The idea was that, for people with a low to moderate risk for heart disease, aspirin therapy was a simple and cost-effective way to help prevent a heart attack or stroke.

But taking aspirin increases the risk for bleeding in the stomach and brain (see "How aspirin affects the body").

Ask the doctor

Q. For 25 years, my doctor has recommended low-dose aspirin to reduce my risk of a heart attack. Recently, he told me that new studies indicate that I can stop. What's changed?

A. Millions of people are asking the same question. I'm afraid some of them think that, when doctors change their recommendations, it means we really don't know what we're doing. To the contrary, the recommendation you got 25 years ago was based on sound scientific evidence, and so is the recommendation you received recently.