No, you can refer to the reason why cars burn gasoline. Gasoline reacts with oxygen through engine gasification and burns to produce heat, water and carbon dioxide. Among them, water and carbon dioxide are discharged through tail gas, and human adipose tissue reacts with inhaled oxygen through exercise to generate heat for human energy. Fat is decomposed into oxidizing gases such as water and carbon dioxide, which are discharged through breathing, and some water is discharged through feces and urine, which will not be discharged in the form of meat, but will definitely be decomposed.