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A randomized controlled trial found that individuals that slept 1.5 hours longer than usual resulted in a 10-gram reduction in refined sugar intake compared to baseline levels.
No, it found that the group encouraged to lead a healthier lifestyle actually (over)complied to that advice, as did the control group, who was told to continue their usual routine.
If that’s not a glaring methodological flaw I don’t know what else is… they ignored the psychological impact of their study design.