A long time ago, as human brains got bigger, it might have been because our ancestors started eating more meat, eggs, and other animal foods rich in fats and cholesterol.

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A brief history of meat in the human diet and current health implications.

Narrative Review

2018 Oct

The study shows that when early humans started eating more meat and animal fats, their brains got bigger—so yes, animal fats and cholesterol likely helped our brains grow.

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