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"a rigorous one-year study in which people followed a low-calorie diet between the hours of 8 a.m. and 4 p.m."

Isn't the whole idea behind time restricted diet that you don't limit calories, but shorten the time window in which you eat them?

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Yes, but the whole idea of the study was to see if IF had weight-loss benefits on top of that, which it does not. This seems to prove that the mechanism by which IF works is calorie restriction, and not some other voodoo.

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