Eating more protein makes you bigger muscles, and bigger muscles burn more calories all day—even if digesting protein doesn’t.
Scientific Claim
Increased total daily energy expenditure from high-protein diets is mediated by elevated fat-free mass resulting from enhanced muscle protein synthesis, not by sustained diet-induced thermogenesis.
Original Statement
“The reason for this is that much of the benefit or thermogenesis of high protein diets is likely related to the increase in muscle protein synthesis. See, when you consume protein, the body preferentially uses this for muscle protein synthesis. This is why consuming protein is beneficial for strength development and muscle hypertrophy. You consume more protein, protein gets into your muscles, you get bigger muscles and it's that higher fat three mass also that gives you a sustained advantage in terms of total daily energy expenditure.”
Context Details
Domain
nutrition
Population
human
Subject
chronic high-protein intake
Action
increases total daily energy expenditure via
Target
elevated fat-free mass from muscle protein synthesis
Intervention Details
Evidence from Studies
Supporting (0)
Contradicting (2)
Effects of Varying Protein Amounts and Types on Diet-Induced Thermogenesis: A Systematic Review and Meta-Analysis
The study found that eating more protein doesn’t keep your body burning more calories long-term through digestion (DIT), but it didn’t check if it builds more muscle — which the claim says is the real reason for higher calorie burn. So we don’t know if the claim is right or wrong.
Increased protein intake reduces lean body mass loss during weight loss in athletes.
The study found that eating more protein helped athletes keep more muscle while losing weight, but it didn’t measure whether their bodies burned more calories because of that protein — so we can’t say if the claim about calorie burning is right or wrong.