Analysis Version
v1
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assertion
Analysis v1
Contested

Eating extra protein doesn’t burn more calories over time if you’re already eating enough for muscle growth.

58
Pro
65
Against

Evidence from Studies

Supporting (1)

58

Community contributions welcome

58

Protein supplements after weight loss do not improve weight maintenance compared with recommended dietary protein intake despite beneficial effects on appetite sensation and energy expenditure: a randomized, controlled, double-blinded trial.

Randomized Controlled Trial
Human
2017 Aug

Even though eating more protein made people burn a little more calories right after meals, it didn’t help them keep the weight off in the long run — so extra protein doesn’t keep your metabolism turned up enough to make a lasting difference.

Contradicting (3)

65

Community contributions welcome

60

High Compared with Moderate Protein Intake Reduces Adaptive Thermogenesis and Induces a Negative Energy Balance during Long-term Weight-Loss Maintenance in Participants with Prediabetes in the Postobese State: A PREVIEW Study

Randomized Controlled Trial
Human
2020 Mar 1

This study found that eating more protein than usual helped people burn more calories and lose weight even after losing weight before — which is the opposite of what the claim says.

56

Effects of Varying Protein Amounts and Types on Diet-Induced Thermogenesis: A Systematic Review and Meta-Analysis

Systematic Review With Meta-Analysis
Human
2024 Dec

The study found that eating more protein over a long time actually burns more calories per day, even if it doesn’t make you burn more right after meals — which means the claim that it doesn’t help is wrong.

20

The Effects of High Protein Diets on Thermogenesis, Satiety and Weight Loss: A Critical Review

Systematic Review With Meta-Analysis
Human
2004 Oct

The study found that eating more protein makes your body burn more calories through digestion, which is the opposite of what the claim says — so the claim is wrong.

Similar Assertions

Chronic elevation of protein intake above optimal levels for muscle synthesis does not sustainably increase diet-induced thermogenesis, despite acute thermogenic effects.

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Increased fat-free mass resulting from elevated muscle protein synthesis is the primary mechanism for sustained elevation in total daily energy expenditure associated with high-protein diets, not diet-induced thermogenesis.

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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.

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Even though eating more protein every day makes you burn more calories at rest, it doesn’t make you burn more calories after meals over the long term—your body gets used to it.

56
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Protein shakes make your body burn a little more calories at rest and after eating, but this doesn’t help you keep the weight off.

58
0
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