> means you're losing some mass of carbon each exhalation and that's a major channel for weight loss. Indeed, that's almost 100% of weight loss, except for som

> means you're losing some mass of carbon each exhalation and that's a major channel for weight loss. Indeed, that's almost 100% of weight loss, except for some daily fluctuations like water weight and what happens to be inside your gut at the moment, right? That's virtually the only way that body actually loses its own mass.