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![](https://lemmy.world/pictrs/image/0943eca5-c4c2-4d65-acc2-7e220598f99e.png)
Muscle mass burns more calories at rest but the effect is very slight. Eating back any calories from exercise will absolutely outweigh any slight change in base total energy expenditure.
Focus first of what you eat, then sustainable exercise, then specific tuning of both.
I suspect the people are also confusing percentile, like for standardized tests, and top % like this site uses.
But yeah, real big “if those kids could read they’d be very upset” energy with these posts, lol.