NatureDietary protein restriction elevates FGF21 levels and energy requirements to maintain body weight in lean men

Dietary protein restriction elevates FGF21 levels and energy requirements to maintain body weight in lean men

I linked this paper because it’s a good example of why simplistic nutrition narratives fall apart when you actually look at physiology. Protein restriction influencing signals like FGF21 and energy requirements is the kind of detail that matters when people claim “less protein is always better.” I like using studies like this to challenge lazy assumptions.