How can something have no calories? What does the body do with this calorie free food?
In: Biology
Calories are a measurement of how much useful energy can be extracted from a given amount of food. Some foods contain no chemicals that can be converted into mechanical energy. For instance, the artificial sweetener aspartame tastes like incredibly sweet sugar, but it’s actually a type of amino acid. The body can’t convert it into anything useful, so it passes through you as if it was water.
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