New research suggests that a simple, affordable nutrient may help rewind the biological clock by protecting your DNA.

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 ...

Taking one type of vitamin D supplement seems to cut the levels of another type that is more easily used by the body, which could affect our immune system. Our bodies create vitamin D when ultraviolet ...

Medically reviewed by Lindsay Cook, PharmD Key Takeaways Vitamin D3 increases calcium absorption, while vitamin K2 activates the proteins that help bind that calcium into bone.Taking vitamins D3 and ...

Scientists discovered that vitamin D2 supplements can lower levels of vitamin D3, the form the body uses most effectively. Unlike D2, vitamin D3 enhances the immune system’s first line of defense ...

Taking vitamin D2 might lower the body's levels of the more efficient form of vitamin D, vitamin D3, according to new research from the University of Surrey, John Innes Centre and Quadram Institute ...

Vitamin D supplements come in two main types: D2 and D3, and a new meta-analysis finds that taking D2 often lowers blood levels of D3. The researchers pooled data from randomized controlled trials and ...

Winter means less time in the sun, but there are foods that can help you get the vitamin D your body needs to function.

Share on Pinterest A new study compared the vitamin D boosting capacity of two forms of vitamin D: D2 and D3. Viktoriya Skorikova/Getty Images Vitamin D deficiency is associated with an increased risk ...