Strong Support

Eating meat, eggs, and dairy gave our ancestors the nutrients they needed to grow smarter brains over thousands of years — so these foods might still help our brains work well today.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

Long ago, our ancestors started eating meat and other animal foods, and that helped their brains grow bigger and work better—this study shows that same thing happened over millions of years.

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.