When people eat more protein, their blood shows higher levels of a waste product called urea, which means their body is breaking down more protein than when they eat more carbs.

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Evidence from Studies

Supporting (1)

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Postprandial Thermogenesis Is Increased 100% on a High-Protein, Low-Fat Diet versus a High-Carbohydrate, Low-Fat Diet in Healthy, Young Women

Randomized Controlled Trial

Human

2002 Feb

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Postprandial Thermogenesis Is Increased 100% on a High-Protein, Low-Fat Diet versus a High-Carbohydrate, Low-Fat Diet in Healthy, Young Women

Score: 46

DOI: 10.1080/07315724.2002.10719194

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When people eat more protein, their blood shows higher levels of a waste product called urea, which means their body is breaking down more protein than usual.

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