Why protein makes you burn more calories after eating

Original Title

Thermic response to isoenergetic protein, carbohydrate or fat meals in lean and obese subjects.

Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms

Summary

When you eat protein, your body works harder to digest it than when you eat carbs or fat — and this happens whether you're lean or obese.

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Surprising Findings

Obese individuals had higher post-meal glucose spikes and fasting insulin, yet exogenous glucose oxidation rates were identical to lean individuals.

Everyone assumes obesity = broken glucose metabolism, but this study proves cells use dietary sugar just as efficiently—meaning the problem is insulin overproduction, not cellular failure.

Practical Takeaways

Replace one carb-heavy meal per day with a high-protein meal (e.g., eggs, chicken, tofu) to boost post-meal calorie burn by 2-3x.

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