Tag: Breathing out fat

Approximately 84% of lost body fat is exhaled as carbon dioxide, with the rest expelled as water. When you "burn" fat, it isn't simply melting away; it is being chemically converted into energy, a process called oxidation, with surprising byproducts.

According to a study published in the *British Medical Journal*, the vast majority of fat that is lost is exhaled as carbon dioxide. Most people have a fundamental misunderstanding of what happens to fat in your body when you burn it, assuming it is simply 'burned up' or converted directly into energy. The reality involves a complex metabolic process that converts stored fat into energy, carbon dioxide, and water.

When you lose 10 kilograms of fat, approximately 8.4 kilograms of it is exhaled as carbon dioxide, while the remaining 1.6 kilograms is excreted as water through urine, sweat, and tears. This surprising fact challenges common misconceptions and provides the scientific answer to the question: does body fat turn into gas?