Summary:

- When you lose weight, the fat in your body is converted into carbon dioxide and water through a complex metabolic process.

- The majority of the fat that is lost is exhaled as carbon dioxide, while a smaller portion is expelled as water through urine, sweat, and other bodily fluids.

- This process occurs because the body breaks down fat molecules, which are composed of carbon, hydrogen, and oxygen, into smaller molecules that can be used for energy or eliminated from the body.