Fish oil is now one of the most popular dietary supplements on the market, with sales reaching $976 million in 2009.

Below, we break down what the research does-and doesn't-say about the benefits of the most popular supplements for lowering cholesterol.

Ginkgo biloba is among the most popular dietary supplements for brain health.

What you need to know about the most popular dietary and nutritional supplements on the market.

It is one of the most popular supplements in the U.S.

In Japan, kale juice (known as aojiru) is a popular dietary supplement.

Below, we break down the evidence (or lack thereof) supporting the most popular supplements used to treat depression and mood.

People who buy valerian, an increasingly popular herbal supplement used as a sleep aid, may not be getting what they are paying for.

We break down what the research does and doesn't say about the benefits of the most popular supplements for lowering cholesterol.

Learn more about this popular herbal supplement and see if echinacea might work for you.