Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

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

Taking too much vitamin D causes side effects like nausea, vomiting, weakness, and abdominal pain. The average adult should take no more than 4,000 international units of vitamin D daily. Vitamin D ...

Taking vitamin supplements you might not need is not only pointless, but can be dangerous. If you're not deficient in a nutrient, your body can't use it as a supplement, registered nutritionist ...

As many cancer patients will confirm, the chemotherapy prescribed to kill the disease is often more debilitating than the cancer itself, with a range of horrendous side effects. Gastrointestinal ...

Learn how vitamin D benefits your body, and how to know if you're getting enough of this key nutrient or if you need more from sun exposure, your diet, or supplements.

Medically reviewed by Suzanne Fisher, RD Key Takeaways Vitamin D supplements do not change skin tone. People with darker skin ...

Vitamin D3, a form of vitamin D that we get from certain foods and exposure to sunlight, is an essential nutrient that plays a role in many bodily functions. This fat-soluble vitamin helps the body ...