Vitamin D is vital for immunity, brain health, strong bones, and overall well-being, but taking in too much from supplements ...

Vitamin D is essential for bone and immune health, but too much can be dangerous. Experts warn that excess supplementation ...

Vitamins are crucial to the human body, but high doses can be harmful. Symptoms of vitamin overdose can range from mild (stomach upset or a skin rash) to severe (liver damage, seizures, or stroke).

Vitamin B12 overdose is so rare that serious adverse effects from consuming large amounts of vitamin B12 have only been reported in a handful of studies in the medical literature. It’s effectively ...

Taking high-dose vitamin E supplements long-term can cause serious side effects like bleeding, stroke, and heart failure. Learn safe dosing and warning signs.

Dear Dr. Roach: Several years ago, in my early 80s, my gynecologist told me (like all women who mainly stayed indoors) that I should be taking 4,000 IU of vitamin D3 daily. Yet today, I read an ...

Not exactly. I mean, they're still vitamins after all. “Any kind of chewable vitamin should never be seen as candy,” says Angela Lemond, R.D., spokesperson for the Academy of Nutrition and Dietetics ...

Your body can’t make vitamin A on its own, so it relies on certain foods or supplements to get it. (Getty Images) Vitamin A might not be the buzziest nutrient out there, but it plays an important role ...