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Re:America’s Obsession with Weight-Loss Drugs Is Affecting t... by paulpauper on Saturday August 19, 2023 @11:40PM (#37195884)
also, metabolism and genes play a role, the latter which determines the former. people with good genes can increase metabolism to keep weight the same despite eating a lot more than needed, without becoming obese.
Re:America’s Obsession with Weight-Loss Drugs Is Affecting t... by sarchertech on Sunday August 20, 2023 @01:26PM (#37201162)
Biology is certainly a factor. BMR varies between individuals (even of the same weight and body composition). However it’s probably a smaller factor than the genetic influence on hunger and satiety.

And despite individual variation in BMR, I haven’t heard any evidence that some people have the ability to significantly ramp up their metabolism in response to consuming more calories.