[stewarts]

I'm not sure how this math checks out.

1lb of fat is roughly 3500 calories. Given 500 calories a day of excess, that would lead to 1lb of fat gain per week. 52 pound average gain per year?

[jmpetroske]

As you gain weight, your base metabolic rate also increases. Having fat means you inherently burn more calories, even if you don’t exercise any more.

Take one person, say they eat 2000 calories to maintain bodyweight. If they start eating 2500 calories a day, they won’t gain 1lb of fat a week forever. As they gain fat, their body naturally burns more calories due to the increased body weight, and eventually a stable weight (higher than their original weight) will be reached.

So yeah if you’re eating 500 calories above your metabolic weight, you’ll theoretically gain weight forever. But in this case your metabolic rate is rising over time, so you would be eating more and more calories per day.

[whatshisface]

Fat does not raise your metabolism by a lot (relatively), and tiny changes in diet lead to massive swings in the equilibrium implied by basal metabolic rate formulas. In fact, some formulas do not include weight due to body fat. If you think about it, that fact touches on the idea that your natural weight is being maintained by another body system, one related to GLP-1.

By the way... if humans had to count calories to not accidentally starve or die from overeating, we would not have made it long enough as a species to invent a scientific way to do that. Even the diets of obese or overweight individuals are being naturally regulated, because anyone could physically eat even more.

[rootusrootus]

This hits on something that seems to get lost in most of these "obese people are lazy fat slobs" circle jerks. A typical American gains 1 or 2 pounds per year as they age. This is not a candy problem, or a binge eating problem, this is way more subtle than that.

[moi2388]

More subtle as in still not a healthy diet with exercise?