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Fish oil and vitamin D supplements might offer some health benefits

In the journals

Vitamin D and omega-3 fatty acid supplements have had mixed results when it comes to preventing heart attacks, strokes, and cancer in people who have already developed these problems or are at high risk for them. Yet a new study published online Nov. 10, 2018, by The New England Journal of Medicine found they may actually prevent these conditions among people who have never had these problems before.

Researchers recruited almost 26,000 people, ages 50 and older, who had no history of heart disease or cancer. The participants were divided into four groups. People in one group were given daily doses of 2,000 international units of vitamin D (an amount found to be linked to lower disease risk in observational studies) and 1 gram of a drug called Lovaza, which contained 840 milligrams of omega-3s (two to four times the amount in two servings of fish per week). The second group took vitamin D and a placebo, the third group took the omega-3s and a placebo, and the final group took two placebos. After more than five years, the researchers found that those given omega-3s were 28% less likely to suffer a heart attack compared with those given a placebo. Those who ate fewer servings of fish (less than the average of 1.5 servings per week) appeared to have a greater benefit from the additional omega-3s while those with higher fish intake had minimal benefit.

Did exercise cause my prolapsed bladder?

Ask the doctors

Q. I was recently diagnosed with a prolapsed bladder. The doctor said it could be due to too much exercise. I've been exercising for more than 40 years and wonder if this is more likely to be age-related. Should people worry about exercise causing this problem?

A. When the bladder drops down from the pelvis and protrudes into the vagina, it's said to be prolapsed. This condition, known as cystocele, is uncomfortable and can also cause urinary problems.

Do you need a thyroid test?

Undetected low levels of thyroid hormone may underlie subtle changes that can increase your risk of cardiovascular disease.

For a gland only two inches in size, the thyroid has a huge influence on our health. It produces a hormone that is carried in the bloodstream to all parts of the body. Thyroid hormone plays a major role in regulating metabolism—the process by which body cells convert nutrients into energy—and thereby helps regulate body temperature, heart rate, and even brain function. So when thyroid hormone levels fall, the body slows.

You're probably aware of the common symptoms of low thyroid hormone—fatigue, fuzzy-headedness, weight gain, cold hands, and dry skin. But if you're like most of us, you're likely to blame your diet and exercise regimen instead of your thyroid if your cholesterol levels and weight are creeping up, especially if you don't have any of the other symptoms of low thyroid. "Symptoms are often nonspecific, and since women over 60 generally have more of these nonspecific symptoms, their doctors may not think to test for hypothyroidism," says endocrinologist Dr. Jeffrey Garber, associate professor of medicine at Harvard Medical School and author of The Harvard Medical School Guide to Overcoming Thyroid Problems.

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