Find out how a lack of vitamin D may increase the risk of chronic disease such as heart disease and cancer and if you may want to take a supplement.

Choose your supplements smartly and safely by learning when they may pose a health risk.

Learn about multiple vitamin-mineral supplements, what they contain and which form might be best suited to your needs.

Discover how folic acid may provide protection from certain diseases, some ways you can get it into your diet, and how it may interact with vitamin B12.

Understand the risks and benefits of natural treatments, and learn how to avoid potential interactions with other drugs.