Medications

Daily multivitamin may be an unnecessary habit

Are you among the one in three Americans who gulps down a multivitamin every morning, probably with a sip of water? The truth about this popular habit may be hard to swallow.

Health

Taking vitamin pills may undermine motivation to reduce smoking

A new study has found that smokers who take multivitamins offset their healthy behaviour by smoking more cigarettes. This is an example of what psychologists call the licensing effect, which occurs when people make a virtuous ...

Health

Quinn on Nutrition: Vitamins—what men and women need

What's the difference between men's and women's multivitamins? If a woman takes a formulation designated for men, will her voice lower an octave? Will a young man's hair turn gray if he ingests a supplement for men over 50?

Cardiology

Multivitamins do not promote cardiovascular health

Taking multivitamin and mineral supplements does not prevent heart attacks, strokes or cardiovascular death, according to a new analysis of 18 studies published in Circulation: Cardiovascular Quality and Outcomes, an American ...

Health

Vitamin C supplements linked to kidney stones

New research from Karolinska Institutet in Sweden shows that men who take vitamin C supplements regularly run a higher risk of developing kidney stones. The study, which is published in the scientific periodical JAMA Internal ...

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Multivitamin

A multivitamin is a preparation intended to supplement a human diet with vitamins, dietary minerals, and other nutritional elements. Such preparations are available in the form of tablets, capsules, pastilles, powders, liquids, and injectable formulations. Other than injectable formulations, which are only available and administered under medical supervision, multivitamins are recognized by the Codex Alimentarius Commission (the United Nations' authority on food standards) as a category of food. Multivitamin supplements are commonly provided in combination with dietary minerals. A multivitamin/mineral supplement is defined in the United States as a supplement containing 3 or more vitamins and minerals that does not include herbs, hormones, or drugs, where each vitamin and mineral is included at a dose below the tolerable upper level, as determined by the Food and Drug Board, and does not present a risk of adverse health effects. The terms multivitamin and multimineral are often used interchangeably. There is no scientific definition for either.

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