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Chromium Excess

By

Larry E. Johnson

, MD, PhD, University of Arkansas for Medical Sciences

Last full review/revision Jun 2020| Content last modified Jun 2020
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Chromium excess occurs when the body has too much of the mineral chromium.

Chromium enables insulin (which controls blood sugar levels) to function and helps in the processing (metabolism) and storage of carbohydrates, protein, and fat.

Chromium supplements do not enhance muscle size or strength.

Small amounts of chromium taken by mouth are not harmful (nontoxic). In the workplace, people may be exposed to a different, harmful (toxic) form of chromium. This form results from industrial pollution. This form may irritate the skin, cartilage of the nose, lungs, and digestive tract and may cause lung cancer.

NOTE: This is the Consumer Version. DOCTORS: Click here for the Professional Version
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Test your knowledge

Iron
Most of the body’s iron is found in hemoglobin, the substance in red blood cells that enables the cells to supply oxygen to all the body’s tissues. Iron also plays a role in muscle cell function and the formation of some enzymes. While iron is found in many foods, it may or may not be easily absorbed depending on the type of iron. Which of the following foods contains the more easily absorbed type of iron?
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