Disappearing fat

In their paper, published in the British Medical Journal today, the authors show that losing 10 kilograms of fat requires 29 kilograms of oxygen to be inhaled and that this metabolic process produces 28 kilograms of carbon dioxide and 11 kilograms of water.

 

When you lose weight, where does the fat go? Most of the mass is breathed out as carbon dioxide, study shows — ScienceDaily.