> In response to 84 days of 1000 kcal/day of overfeeding, 12 pairs of monozygotic twins gained on average 8.1 kg, but the range was from 4.3 to 13.3 kg.
That’s not a vast range? It means some people gain more than they „should“, and some less than half of the caloric intake.
It’s also not „my“ arithmetic btw.
My original response was to a comment suggesting that overweight and obese people get home and eat 15 chocolate bars. My observation, supported by your additional evidence, is that a small imbalance has a substantial cumulative effect.
edit: parent comment was edited to remove the examples of eating behaviors they believe are the cause of fatness. Their examples were all things that I as a naturally skinny person do or have done regularly.