Comment by verteu

For me, the biggest mystery is this: If obesity is caused by poor diet, why doesn't dieting work long-term?

https://www.health.harvard.edu/blog/when-dieting-doesnt-work...

> 121 eligible trials with 21 942 patients were included and reported on 14 named diets and three control diets ... At 12 months the effects on weight reduction and improvements in cardiovascular risk factors largely disappear.