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 ...

Getting enough fiber is crucial for optimal health, yet more than 90% of Americans don’t. Federal dietary guidelines ...

If you are having irregular bowel movements and are often constipated, a fiber supplement might help. Learn other signs your ...

These high-protein, high-fiber foods can help you get more of the nutrients you need for a healthy, balanced diet.