Taking vitamin D2 may lower vitamin D3 levels, suggesting the two forms aren’t interchangeable. Vitamin D3 appears more effective for maintaining healthy vitamin D levels in the body. Few foods ...

Vitamin D is known to be essential to many aspects of human health — but a new study suggests that taking a certain form of it can have a negative effect. The more potent and longer-lasting form, ...

New research indicates that Vitamin D2 supplementation may actually lower the body's natural Vitamin D3 levels. While both forms are used, Vitamin D3 is now believed to be significantly more effective ...

Many people take vitamin D supplements to stay healthy during the darker months—but new research suggests that choosing the wrong type might actually weaken your immune system. A study by scientists ...

All products featured on GQ are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. As far as nutrients go ...

Vitamin B12 plays a crucial role in the health and performance of the body. With this knowledge, people often reach for supplements at the drugstore. But how much Vitamin B12 do we actually need, and ...

Medicare Advantage, the private-plan alternative to traditional Medicare, may finally see a hiccup in its blistering subscriber growth. Enrollment in Medicare Advantage is projected to be 34 million ...

Many state Medicaid programs cover incontinence supplies — including adult briefs, pull-ons, and even catheters — if they’re deemed medically necessary. Coverage and monthly limits vary by state, so ...

A form of B3 called nicotinamide cut the risk of developing repeat skin cancers by as much as 54 percent, according to new research. A large new study found that nicotinamide, a form of vitamin B3, ...

Florida-based startup Prisidio has partnered with AARP to offer its members a "digital vault" service. The cloud-based platform allows users to securely store and share vital information like wills, ...