Eating lots of protein makes your kidneys work harder in healthy people, but it probably doesn't harm them if your kidneys are already healthy. However, if you have kidney problems, high protein might make them worse.

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Evidence from Studies

Supporting (1)

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Controversies surrounding high-protein diet intake: satiating effect and kidney and bone health.

Narrative Review

2015 May

The study says high-protein diets aren't proven to harm healthy kidneys, but they can make existing kidney problems worse, which matches the claim.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

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

Controversies surrounding high-protein diet intake: satiating effect and kidney and bone health.

Score: 1

DOI: 10.3945/an.114.007716

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