author(s)
G. Tulasi and K. Jayantha Rao

abstract
The aim of this paper is to current knowledge about the essentiality of trivalent chromium for organisms and human dietary nutrition and biological function with special reference to role in dietary intake and recommendations. Trivalent Cr is the most stable form in biological systems it does not penetrate biological membranes easily and it appears that the transport of specific Cr compounds is strictly regulated by the organism. Chromium is a naturally occurring element found in rocks, soil, plants and animals in volcanic dust and gases. Animal studies suggest that the chromium may help improve blood pressure. Chromium has demonstrated the ability to low density lipoproteinrn(LDL or bad) cholesterol levels and raise high density lipoprotein (HDL or good) cholesterol levels in the blood, particularly in people having with high cholesterol. Animal studies show that Chromium bound to niacin or vitamin B3 protects the heart and increases energy levels. Chromium is commercially available in several forms, including Chromium nicotinate, Chromium histidine, Chromium picolinate, Chromium-enriched yeast, Chromium chloride and Glucose Tolerance Factor of chromium (GTF). Chromium is available as a part of many multivitamins or alone in tablet and capsule forms.