GTF Chromium is a trace mineral that plays a role in regulating blood sugar levels. Each "glucose tolerance factor" (GTF) molecule, a hormonelike compound, requires chromium as its central atom. GTF works with insulin to transport glucose from the blood into the cells. When this function is not working properly, the cells resist insulin and do not properly absorb the glucose needed for energy. The liver also needs chromium to manufacture fatty aids, lecithin, cholesterol, and lipoproteins. Without chromium, blood fats tend to rise because the liver cannot filter them out. Processing destroys much of the chromium content in foods