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May 25, 2020 at 19:37 comment added uUnwY It's not really so surprising. Carbon is converted to Carbon dioxide which is exhaled. A quick back-of-the envelope calculation shows this makes sense: 1kg of fat has about 38000kJ, that's a bit over 3 times the energy used in a day, so if we don't eat, we convert about 300g fat into CO2 in a day, or 100g during sleep (1/3 day).
S Jan 24, 2016 at 3:23 history suggested ott-- CC BY-SA 3.0
corrected spelling (lose instead of loose)
Jan 23, 2016 at 21:41 review Suggested edits
S Jan 24, 2016 at 3:23
Sep 7, 2014 at 17:39 vote accept yuritsuki
Sep 7, 2014 at 17:39
Sep 7, 2014 at 9:09 review First posts
Sep 7, 2014 at 9:49
Sep 7, 2014 at 9:05 comment added IQAndreas * Technically calorie is a unit of energy and not an item that can be "burned". What we mean when we use the word is the process of molecules being broken apart, which releases energy that can be used by the body; however, the pieces of the "broken up" molecules still weigh the same as the molecule as a whole, so we don't loose weight just from "burning calories".
Sep 7, 2014 at 8:58 history answered IQAndreas CC BY-SA 3.0