Ran the calculations some time ago, and donating a half liter of blood gets rid of about 500kcal, which I can easily manage to do in under half hour not counting the paperwork. I think the only more calorie-consuming activity I can think of is liposuction or mutilation of body parts. Not that I recommend either, just a random thought.

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[–] PolarKraken@lemmy.dbzer0.com 2 points 4 days ago (1 children)

You are correct, and I declare arguments to the contrary are "silly", possibly "dumb".

One can very easily burn 400 calories during a brisk jog! Most folks can manage it. That's done by their body burning up most of those anyway at rest.

There is no magic where 400 kcal gets specifically dumped by adding a 30 min brisk jog lol. This would be silly-mode thinking.

[–] queermunist@lemmy.ml 3 points 4 days ago* (last edited 4 days ago) (1 children)

You certainly do not burn 400 calories every 30 minutes at rest either. Remember, there's 48 periods of 30 minutes in a day and about 2000 calories to get through a day; at rest it's probably around 40 if we just evenly divide calories per 30 minute period.

[–] PolarKraken@lemmy.dbzer0.com 1 points 4 days ago

Yeah, tbh I didn't bother looking at what would/could be truly burned at rest, that was lazy of me. Just wanted to indicate how far off "burning" 400 in that way was.