Summary:
- The article examines the evolutionary biology of lactase persistence, noting that the inability to digest lactose in adulthood is the ancestral human state, while the ability to do so is a relatively recent genetic mutation.
- It explores the intersection of nutritional science and sociopolitical history, detailing how the promotion of dairy consumption in the U.S. has been influenced by government dietary guidelines, industry lobbying, and racial biases that pathologize non-European physiological traits.