Vitamins are often seen as harmless, but taking too much can cause serious health problems. Some vitamins build up in the ...

Vitamin D is essential for strong bones and immunity, but too much can quietly harm your kidneys.

There’s growing awareness of rare, but potentially serious side effects from mega doses of vitamin B6, a nutrient found in ...

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 ...

Too much vitamin D, or vitamin D toxicity, happens due to a buildup of calcium in the blood (hypercalcemia), which can be ...

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 ...

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 ...

The NHS recommends taking vitamin D supplements during winter months to keep bones and muscles healthy, but experts warn of ...

The man was suffering vomiting, chest pain, leg cramps, ringing in his ears, a dry mouth, thirst and diarrhoea ...

Is it dangerous to consume too much vitamin C? Not really. “A genuine overdose of vitamin C is unlikely,” says Gürtler. “It’s water-soluble and the body cannot store excess amounts; the excess is just ...

NHS experts warn Vitamin D users to stop high doses after overdose cases, urging people to follow guidance and watch for ...