Already, red flags have been raised. One concern is that chromium may compete with iron for transport into the blood, thereby increasing the risk of iron-deficiency anemia. Another concern is that high levels of chromium supplementation over long periods may cause chromosomal damage. Besides the need for more study, most researchers seem to agree on the following. Chromium is an essential nutrient, but it's not a magic bullet for losing weight, building muscle or staying young.
Most people get enough chromium in their usual diet.
Designer supplements generally are not necessary. If you're glucose-intolerant and not getting enough chromium from your diet, taking 200 micrograms a day may help lower your blood sugar. For more information, contact your local Colorado State University Cooperative Extension office . Go to top of this page.