Medically reviewed by Qin Rao, MD Vitamins that are water-soluble—including C and B-complex—dissolve in water and aren't ...

How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, ...

Though it’s rare, a severe vitamin D deficiency can lead to a disease called rickets, also known as osteomalacia. Typically, ...

It is possible to overdose on vitamins. It is important to know how much you're getting in both food and supplements.

Vitamin K is essential for bone health, controlling blood clots, and other bodily functions. The best way to get the nutrient ...

Still, overdosing on "both water- and fat-soluble vitamins can cause a range of adverse reactions including irregular heartbeat, frequent urination, abdominal pain, weakness and appetite loss ...

Fat-soluble vitamins — A, D, E and K — are stored in the body’s fatty tissue, liver and muscles, so they are absorbed better when taken with fatty foods.

Fat-soluble vitamins, on the other hand, are more easily stored — which also means they can build up and cause toxicity. In general, the average healthy person doesn’t need to take extra ...

“Vitamin D is a fat-soluble vitamin that is important for health,” C. Michael White, MD, PharmD, distinguished professor and chair of the University of Connecticut School of Pharmacy, tells ...