[johnkpaul]

You might find this NYT piece on the winners of the Biggest Loser TV show interesting. Basically, "dieting" as a reduction in calories is a lose-lose game because your basal metabolic rate goes down so you have to keep eating less and less to keep it up.

https://www.nytimes.com/2016/05/02/health/biggest-loser-weig...

Keeping up the basal metabolic rate is part of the rationale behind intermittent/extended fasting instead of pure calories-in-calories-out weightloss advice.

[bumby]

If you are changing you metabolic rate, you are changing the "calories-out" so it's not like it's an entirely different approach.

[s1artibartfast]

Fasting also changes your bmr, often far more