Where does the weight go once you lose it?
In: Biology
Your body breaks down stored energy (fats, carbohydrates, some protein) to release energy in the form of movement and heat. The weight you lose is the stored energy, which cannot be lost, only converted to another form of energy.
Primarily, energy goes to fuel metabolic reactions in your body and movement through your muscles, which both produce heat as a byproduct. Heat is mainly lost by sweating (evaporation), and through excretion of urine/faecal matter.
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