I’m not sure that’s the case from your linked meta-study. As usual the summary hides the nuance and issues in the individual studies. I went though a bunch of t

I’m not sure that’s the case from your linked meta-study. As usual the summary hides the nuance and issues in the individual studies. I went though a bunch of them, and to give my own summary lacking nuance: not convinced. Looking at the linked studies that went for more than a week, we have this one for instance that appears to show good results for IF: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6682944/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6682944/ Except it’s a trial on 10 people in an already severly pathological situation. That might apply to some of us, but it’s far from a generic study. Or this one, which reports memory issues from IF (an also only targeted subjects with obesity) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146388 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146388 Or this one, which showed improvement through the trial, but with no significant distinction between the two method tested, which could mean the effect could be from the observation of the subjects themselves: https://pubmed.ncbi.nlm.nih.gov/29778565 https://pubmed.ncbi.nlm.nih.gov/29778565 Most of the study were interesting, but no brazing praise of IF really.