One of my mates could easily drop a min 5kg water weight (she’s happier to think otherwise haha) after a weekend of mustering livestock.
Anyway this also reminded me of a topic I listened on a podcast some time ago. Apparently fat ‘loss’ takes a lot of huffing and puffing work! Obviously, but literally is breathed out.
“84 per cent of atoms that make up a fat molecule exhaled as carbon dioxide, and the remaining 16 per cent lost through water, excreted in bodily fluids such as sweat, tears and urine … Their analysis also showed that for every 10 kilograms of fat being ‘lost’ or oxidised, the body actually needs an additional 29 kilograms of oxygen, with the resulting output of 28 kilograms of carbon dioxide, and 11 kilograms of water.” Want to lose weight? Breathe out › News in Science (ABC Science)