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

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

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

Vitamin B12 supplements might be recommended to people who are at particular risk of being deficient in it. This includes ...

Are you running low on Vitamin B6 levels? Here are some warning signs that your body may show when you are suffering from ...

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

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 supplements are generally in your system after 4 to 12 weeks. Learn more about the importance of consistent ...

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.

Water-soluble vitamins dissolve in water; they are packed into the watery portions of the foods you eat. Vitamin C and the B vitamins are water-soluble vitamins, for example.

Water-soluble vitamins (B-vitamins, vitamin C) are not retained by the body over the long term. Any excess consumed in foods or supplements is eliminated in urine.