Chromium is a mineral required in small amounts for carbohydrate and fat metabolism. Dietary sources include carrots, potatoes, broccoli, whole grains, and molasses.
Chondroitin sulfate is a glucose aminoglycan, a natural component of cartilage. It is extracted from shark or cow, or manufactured artificially. It is often combined with glucosamine.
The Dietary Supplement Health and Safety Act (DSHEA) of 1994 defines a dietary supplement as any product (except tobacco) - in the form of a pill, capsule, tablet, or liquid - that contains a vitamin, mineral, herb, or other substance.