this post was submitted on 04 Mar 2024
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My understanding is that severe shifts in calorie intake vs output can lead to lasting metabolic changes. I think the main example people point to is that all "biggest loser" contestants failed to keep their weight down even when they maintained their diets and exercise for a long period.
It's not really metabolic per se, but hormonal. Hunger is hormone driven. If you restrict calories, you recalibrate your hormonal response to fullness and hunger.
No, these studies indicated metabolic changes: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4989512/