The Claim
Increasing dietary protein intake from 15% to 25% of total energy intake has no effect on total energy consumption in lean adults over a four-day period, suggesting a directional asymmetry in protein leverage where compensatory mechanisms respond to protein deficiency but not to protein excess.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When lean adults increase their protein intake from 15% to 25% of daily calories, they do not eat fewer total calories over four days, indicating that the body adjusts energy intake when protein is too low but not when protein is too high.
See the scientific wording
Increasing dietary protein from 15% to 25% of total energy intake does not reduce total energy consumption in lean adults over four days, indicating an asymmetry in protein leverage where the body compensates for low protein but not excess protein.
What the research says
1 studyStudy: Testing Protein Leverage in Lean Humans: A Randomised Controlled Experimental Study
When people ate less protein, they ate more food and felt hungrier, but when they ate more protein, they didn’t eat less — their appetite stayed the same. This means the body tries to get enough protein when it’s low, but doesn’t slow down eating when there’s too much.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.