Drinking milk drove a lactose-tolerance evolutionary change in the human genome
Extensive genetic and anthropological evidence supports the culture-historical hypothesis, showing that the practice of drinking milk and dairy farming drove positive selection for lactase persistence alleles in human populations.
Both papers explicitly support the claim that the cultural practice of consuming milk acted as a selective pressure driving the evolution of lactase persistence in the human genome. Paper [0] is irrelevant chemical literature, leaving papers [1] and [2] to solidly support the claim.
Nina Hollfelder, Hiba Babiker, Lena Granehäll, Carina M Schlebusch, Mattias Jakobsson. The Genetic Variation of Lactase Persistence Alleles in Sudan and South Sudan. 2021. https://doi.org/10.1093/gbe/evab065
The study demonstrates that pastoralist populations dependent on milk show higher frequencies of lactase persistence alleles, supporting gene-culture coevolution.
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Jorge Rocha. The evolution of lactase persistence. 2012. https://doi.org/10.14195/2182-7982_29_9
The review details how the cultural history of dairying and milk consumption drove the evolutionary adaptation of lactase persistence in human populations.
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