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Chromium May Cut Carb Craving in Depression

Could Also Cut Risk of Diabetes, Researchers Say
WebMD Health News

June 3, 2004 -- A popular nutritional supplement may reduce serious carb cravings in people with depression.

The supplement is chromium picolinate. The new finding comes from a small clinical trial sponsored by Nutrition 21, which years ago purchased the patent rights to chromium picolinate from the U.S. Department of Agriculture.

John P. Docherty, MD, president of Comprehensive Neuroscience Inc., White Plains, N.Y., and adjunct professor of psychiatry at Cornell University, penned the report. Docherty presented the findings at the National Institute of Mental Health's annual New Clinical Drug Evaluation Unit Conference, held this week in Phoenix.

"It is an exciting finding," Docherty tells WebMD. "The real benefit of this is the high rate of response in this subgroup of depressed patients. If this finding holds up, it is a very important finding for depression. And there was a very, very favorable side effect profile."

Chromium Picolinate's Effects on Metabolism

Chromium picolinate is a nutritional supplement. The "picolinate" part of the compound is thought to enhance the body's ability to absorb chromium. Chromium is a necessary mineral. The typical Western diet barely contains an adequate amount of chromium -- so chromium supplements are quite popular. It's the second most popular mineral supplement in the U.S.

All kinds of claims have been made about chromium picolinate. Few of them are proven. One known effect is the supplement's ability to increase the body's sensitivity to insulin, helping it work better to control blood sugars. It's not clear whether the supplement provides significant help to people with diabetes. A recent analysis of well-designed studies showed that it does not significantly affect blood sugar or insulin levels in people who do not have diabetes.

Depression, Diabetes, and Carb Craving

Docherty notes that there is a connection between diabetes and depression. People with depression, he says, are twice as likely to get diabetes. What's the link?

The most common form of depression, ironically, is called atypical depression. Instead of losing their appetite, people with atypical depression often overeat. Many of these people report an almost irresistible craving for carbs.

Docherty's study enrolled 113 people with atypical depression. Two-thirds took chromium picolinate supplements for eight weeks, and one-third got a placebo.

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