Thursday, August 14, 2008

Ketonuria - Wikipedia, the free encyclopedia

Ketonuria - Wikipedia, the free encyclopedia: "Ketones are metabolic end-products of fatty acid metabolism. In healthy individuals, ketones are formed in the liver and are completely metabolized so that only negligible amounts appear in the urine. However, when carbohydrates are unavailable or unable to be used as an energy source, fat becomes the predominant body fuel instead of carbohydrates and excessive amounts of ketones are formed as a metabolic byproduct. Higher levels of ketones in the urine indicate that the body is using fat as the major source of energy.
Ketone bodies that commonly appear in the urine when fats are burned for energy are acetoacetate and beta-hydroxybutyric acid. The gas acetone is also produced, but is exhaled. Normally, the urine should not contain a noticeable concentration of ketones to give a positive reading"

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