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Glutamine Fights Energy Sapping Toxins During Hardcore Exercise

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Written by Superhuman
Sunday, 20 January 2008
Ammonia is a toxin produced during fat metabolism that causes central nervous system and muscle fatigue and tissue damage. Carbohydrates are the main fuels during exercise at intensities above 65 percent of maximum effort. The muscles get carbs from glycogen stored in the muscles and from glucose (sugar) circulating in the blood. Blood sugar comes from the absorption of carbs from the gut and from carbohydrates stored or generated in the liver. Carb stores are limited, so the body uses some fats and amino acids for fuel during sports such as soccer. Ammonia production increases during exercise because of the incomplete breakdown of fats. Brazilian scientists found that glutamine supplements reduced ammonia levels in professional soccer players performing either prolonged or short-term intense exercise. Glutamine served as an energy source during exercise, which prevented ammonia buildup. (British Journal Sports Medicine, in press; published online November 5, 2007)

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