Chromium is an essential trace element involved in the metabolism of carbohydrates, lipids, and proteins mainly by increasing the efficiency of insulin. Chromium functions in maintaining normal glucose tolerance primarily by regulating insulin action. Chromium deficiency affects the maintenance of normal glucose tolerance and healthy lipid profiles. However, the dietary intake of chromium in humans is often suboptimal. Insufficient dietary chromium is associated with glucose intolerance which appear widespread in the general population. Improved chromium nutrition leads to improved sugar metabolism in hypoglycemics, hyperglycemics, and diabetics.Chromium has been found to lower the proportional amount of the harmful LDL-cholesterol in blood. Chromium has been reported to increase lean body mass and decrease percentage body fat, which may lead to weight loss in humans.