It's actually like 85% to 90% CO2 by weight IIRC, can't remember the chemistry off the top of my head, but I remember being shocked by that. You literally brea

It's actually like 85% to 90% CO2 by weight IIRC, can't remember the chemistry off the top of my head, but I remember being shocked by that. You literally breathe most of the weight off. Edit: Found a source, memory was about right. Per this info-graphic [0] and this paper [1], approximately 84% of fat loss by mass is exhaled as CO2. [0]https://www.bmj.com/content/bmj/349/bmj.g7257/F2.large.jpg https://www.bmj.com/content/bmj/349/bmj.g7257/F2.large.jpg [1]https://www.bmj.com/content/bmj/349/bmj.g7257.full.pdf https://www.bmj.com/content/bmj/349/bmj.g7257.full.pdf