Nutritional supplements
Learning Center
Tetanus shots: Is it risky to receive 'extra' boosters?
For adults, tetanus shots are recommended every 10 years.
Tanning beds: Safer than the sun?
Tanning beds don't offer a safe alternative to natural sunlight.
Stomach flu: How long am I contagious?
Depending on which virus causes your stomach ailment, you can be contagious from a few days to two weeks or more.
Sodium nitrate in meat: Heart disease risk factor?
Sodium nitrate, a preservative in some meats, may increase your heart disease risk.
Sitting risks: How harmful is too much sitting?
Sitting for long periods — such as in front of the TV or at a desk — appears to increase risk of death from cardiovascular disease and cancer.
Shingles vaccine: Should I get it?
People who are age 50 and older should get this vaccine to prevent shingles.
Pros and cons of taking a magnesium supplement
Magnesium supplements are popular but not risk-free. Fortunately food sources are easy to add to your diet.
Probiotics and prebiotics: What you should know
Probiotics are foods or supplements that contain 'good' bacteria that might help treat or prevent illness. Should they be part of your diet?
Prenatal vitamins: OK for women who aren't pregnant?
Prenatal vitamins: Why they might not be suitable if you're not pregnant.
Pet allergy: Are there hypoallergenic dog breeds?
There are no hypoallergenic dog breeds, but you can reduce your allergic reactions.
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