It's advertised to increase your glucose tolerance and stabilize your blood sugar levels. When you exercise strenuously, your body may lose more chromium than usual through urine. And some studies have found that exercisers have low levels of chromium, especially if they don't get enough in their diets. But no well-controlled studies have found that chromium supplements will improve athletic performance in people who are not chromium deficient. Because chromium is an important nutrient, you should include it in your diet.
Some good sources are mushrooms, oysters, apples with skins, prunes , nuts and asparagus.
Foods that are highly processed or refined, such as sugars and white flour, are not good sources. Choose unrefined carbohydrates, such as grains and cereals, beans, peas and starchy vegetables. Finally, when purchasing any supplement, try to find brands from well- known manufacturers. Because there is very little regulation of the nutrition supplement industry, some products from unknown companies may be mislabeled or contaminated. Also, don't be fooled by fancy claims or packaging.