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    Includes Expert Content
    Ammonia smells
    An_198570 posted:
    Why do i sometimes give off an ammonia smell when I have a good workout?
    Rich Weil, MEd, CDE responded:
    You're smelling acetone on your breath which can smell like ammonia or have a metallic quality. Acetone is one of three ketone bodies, and ketones are the byproduct of fat metabolism. They occur in the body when people go on low carbohydrate diets, when people lose weight, when people do lots of aerobic exercise, or any combination of the three. Ketones are common and generally not dangerous unless you have type 1 diabetes, as they generally do not rise to dangerous levels before the body metabolizes them. They are a source of fuel for skeletal muscle as well as the brain and will not interfere with your performance. Make sure you stay well hydrated.

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