> One donut takes like 3 hours to burn off at a good clip on a treadmill I don't know where you get this idea but I see this meme really often in defeatist "it

> One donut takes like 3 hours to burn off at a good clip on a treadmill I don't know where you get this idea but I see this meme really often in defeatist "it's impossible to lose weight" discussions. It's so easy to research, I don't know why it spreads so easily. A Krispy Kreme caramel glazed doughnut is about 220 kcal[0] and a very light treadmill session (30 minute, 5% incline, 3 mph) will probably burn in the 220 range[1]. > unless you’re a professional athlete, your voluntary physical activity is a rounding error in terms of weight management Absolutely not. It's true that for somebody that eats/burns ~2000 kcal in a day, about 1500 of that is for just existing (the resting metabolic rate[2]). But even small amounts of exercise are significant: that 30-minute speedwalk is 10% of your calorie intake! Turning it up to a jog can easily be twice that. [0]: https://s3.amazonaws.com/kkd-e1-images.kktestkitchen.com/ecomm/nutrition/11019-nutrition.pdf https://s3.amazonaws.com/kkd-e1-images.kktestkitchen.com/eco... [1]: https://www.sparkpeople.com/resource/calories_burned.asp?exercise=193 https://www.sparkpeople.com/resource/calories_burned.asp?exe... [2]: https://www.verywellfit.com/metabolism-facts-101-3495605 https://www.verywellfit.com/metabolism-facts-101-3495605