Chromium is a trace element that helps to aid insulin, the hormone that is critical to metabolism. Chromium is available in two different forms, one of which is found in foods and is necessary for life, and the other which is toxic and forms as a result of industrial pollution. Chromium is found in many foods, but is not concentrated in large amounts in any of them.
Chromium is found in small amounts in both plant and animal food sources. The foods with the highest amount of chromium include broccoli, potatoes, garlic, basil, beef, red wine, grape juice, turkey breast, and orange juice. The body does not absorb chromium very efficiently, it absorbs it better when consumed with Vitamin C and Niacin.
Chromium is widely available in supplements with claims that it helps to decrease body weight and increase muscle mass. Studies have shown some correlation, although the difference shown between chromium and placebo is rather negligible.