Women who might become pregnant should be especially cautious with vitamin A supplements or avoid them entirely .

EMERGING evidence supports a role for vitamin D in regulating blood glucose, particularly among individuals with Type 2 ...

Vitamin A supports healthy eyes, skin, immune function, and more. Who needs a supplement? Experts discuss the benefits, risks, and how to take them.

Research Continues to Reinforce the Importance of Consistent Vitamin D Intake for Immune Support. SYNEVIT®'s Vitamin D Supplement Addresses the Need.

Side effects from taking too much vitamin B6—including nerve damage—may be more widespread than we think, Australia's ...

In short, vitamin D can support memory as we age, but too much might slow down our reactions. Striking the right balance is ...

Supplements are part of the daily routine for over half of adults in the United States. However, they aren't regulated in ...

Dear M.E.B.: I think many media sources avoid the complexity of the issue. The preferred unit to describe doses of vitamin A are now micrograms RAE, or “retinol activity units.” Different vitamin A ...

If I am taking vitamin A, what is a reasonable dose? I have seen reports taking too much can cause liver damage, but nobody says how much is a problem. — M.E.B.

Vitamin B12 plays many crucial roles in the body. Some think taking megadoses is best for their health. Learn more about how much vitamin B12 is too much.

A new report from the VITAL study—a large, long-term randomized clinical trial—has found that taking vitamin D supplements ...