You shouldn't take more than 100 mcg (4,000 IU) of vitamin D in a day unless a doctor recommends you do so to combat a deficiency, Thomason says. More: Bitter melon supplements are becoming more ...

We have the lowdown on 15 brands, including Nature Made, One a Day, and Up&Up. By Angela Lashbrook Senior Home & Trends Writer By Jessica D’Argenio Waller, MS, CNS, LDN ...

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

How much vitamin C per day? The Recommended Dietary Allowance (RDA) for vitamin C depends on a handful of factors, including age and sex (for adults):. 0 to 6 months: 40 mg 7 to 12 months: 50 mg 1 ...

How much vitamin C per day? The Recommended Dietary Allowance (RDA) for vitamin C depends on a handful of factors, including age and sex (for adults):. 0 to 6 months: 40 mg 7 to 12 months: 50 mg 1 ...