Medically reviewed by Rochelle Collins, DO When the sun’s ultraviolet (UV) rays connect with your skin, it triggers vitamin D ...

The Recommended Dietary Allowance (RDA) for vitamin C depends on a handful of factors, including age and sex (for adults): 19 ...

Therefore, consuming too much vitamin D can lead to toxicity. “The tolerable upper intake level is 100 micrograms — or 4,000 international units,” Garcia-Webb says.

Too much vitamin D can cause dangerously high calcium levels in the blood, which can lead to symptoms like fatigue, nausea, confusion, and damage to blood vessels.

Experts share how nutrition can strengthen bones with foods like tofu, prunes and yogurt, which are rich in calcium, vitamin D and other vital nutrients.

A number of widely available foods could help protect your skin from the summer sun. Many people are looking forward to bathing in the sun this summer and soaking in as much vitamin D as they can ...

Keep in mind that having too much vitamin D can cause uncomfortable and dangerous side effects. This supplement provides more vitamin D than is necessary for most people.

Anti-vaccine activists seized on a measles outbreak in Seminole, Texas, and turned the small Mennonite city into a battleground between fringe doctors and mainstream medicine.

There are a total of 20 amino acids, 9 of which are essential, meaning the body cannot produce them adequately on its own and must get them from food. Whey protein contains all of them, Marie Spano, ...

Beyond dizziness, you want to look out for the sudden onset of “the worst headache of your life and any loss of limb function ...