While vitamin C is essential for health, high doses can cause serious side effects. Learn the risks and how to use it safely, ...

Medically reviewed by Melissa Nieves, LND Key Takeaways It may be best to take vitamin D in the morning because taking it at ...

Medically reviewed by Gurdeep S. Sareen, PharmD Key Takeaways Collagen provides structural building blocks for the skin, ...

A doctor explains who truly needs a vitamin D supplement in the winter, how to tell if you're deficient, and when ...

Timing can influence how your body absorbs Vitamin D. Here is all you need to know about meal composition, time of day, and ...

Vitamins D and C both play important roles in immune health, but will either prevent you from getting sick? Here's what experts want you to know.

Vitamin C and zinc are both nutrients that can support your immune system. Taking them together, through diet or supplements, may enhance their effects.

According to the National Institutes of Health, the average adult woman needs 8 milligrams (mg) of zinc per day, while adult ...

If you ask most conventional doctors whether they take supplements themselves, the chances are they will reply that they do ...

Experts discuss the evidence on the benefits of diet supplements. Oct. 12, 2011— -- It's been a tough week for vitamins. Researchers published back-to-back studies this week suggesting that daily ...

Vitamins are often associated with energy, immunity and vitality. So, when someone feels nauseous, tired or unwell after taking them, it can lead to frustration or even anxiety. But this unexpected ...

Vitamins for teens have come a long way from those chalky, “fruity” Flintstones vitamins many of us Millennials had to stomach. As a parent, you want your teen to be getting the proper nutrients, ...