There’s been multiple news reports lately regarding vitamin D and its benefit on everything from Alzheimer’s to heart disease ...

It’s the most popular supplement on the market. But why do we need vitamin D—and why is the advice on how to get it so contradictory? Sunlight is all our bodies need to make vitamin D—a ...

Has your health provider recommended that you take an iron supplement? Men need less iron than women, but iron still plays a ...