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.

Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin D is involved in many bodily functions and plays a vital ...

Beyond skeletal strength, these two forms of Vitamin D also play important roles in immune function, supporting the body's defenses against illness. They are also integral to maintaining muscle ...

Vitamin D deficiency is associated with an increased risk of rickets, osteomalacia, cardiovascular conditions, and autoimmune diseases. Vitamin D2 and vitamin D3 are the two forms of vitamin D, and ...

Vitamin D deficiency is very common, especially during the winter months with less sunlight. Add these foods to your diet to help.

People with vitamin D deficiency are at greater risk of becoming depressed, and those with depression are more likely to be ...

Vitamin D is an essential nutrient in the human body and plays a major role in maintaining cognitive function, immune health and bone health. Even if you are not vitamin D-deficient, you may not be ...

Vitamin D2 and D3 are the two main forms of vitamin D. Vitamin D2 is present in plants and yeast, while D3 comes from animal sources. Vitamin D is essential for a range of bodily functions such as ...

A new study reveals that taking vitamin D2 supplements might surprisingly lower your body's crucial vitamin D3 levels, essential for immunity and bone health. Researchers suggest D3, derived from ...