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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[–] BironyPoisoned@hexbear.net 2 points 3 days ago (1 children)

Swimming, biking, rowing, all offer similar levels of calories burned with less impact on knees.

Plus running doesn't actually ruin your knees. You might be able to get into it if you take it slow but it's up to you.

[–] Feed_el_Castro@hexbear.net 1 points 3 days ago

Yeah yeah I'm not blaming it on running, I'm blaming it on my undiagnosed knee pains that set in after 4 minutes of jogging.