Chromium is a mineral that humans require in trace amounts. It's well established that chromium enhances the action of insulin. Since this hormone regulates storage fat utilization, some have suggested that chromium supplementation may promote fat loss. A study by Dr. H.C. Lukaski and colleagues at the USDA Research Center tested the theory that chromium picolinate supplementation (200 micrograms per day) decreases bodyweight and improves body composition in subjects fed nutritionally balanced diets. As expected, chromium supplementation increased blood chromium concentration; however, supplementation did not affect bodyweight or body fat. Thus, it's becoming increasingly clear that chromium supplementation is of benefit only to individuals showing signs of deficiency (e.g., decreased insulin sensitivity). However, I'm not suggesting that supplemental chromium is largely a waste of money.

A recent literature review by Dr. R.A. Anderson concluded, "Dietary intakes of [chromium] are often suboptimal, based upon the fact that there are numerous peer-reviewed studies documenting the beneficial effects on insulin sensitivity, body composition and related variables...Chromium is safe at all of the levels tested for oral intakes and therefore may be a safe and inexpensive aid to improve glucose and insulin metabolism and body composition."

If you feel you need supplemental chromium, we would suggest around 50-100 micograms per day.

References:

• 1. Lukaski HC et al. Chromium picolinate supplementation in women: effects on body weight, composition, and iron status. Nutrition, 2007 Feb 7; [Epub ahead of print].
• 2. Anderson RA. Chromium: roles in the regulation of lean body mass and body weight. In: Kohlstad I, ed. Scientific Evidence for Musculoskeletal, Bariatric and Sports Nutrition, Boca Raton, FL: CRC Press, 2006, pp. 175-189.