Copy into your RSS Reader
Copy into your Podcast App
A new study on lactose tolerance among early farmers in Spain challenges a leading theory that humans developed an appetite for milk to avoid calcium deficiency.
January 29, 2014 The latest twist in this evolutionary whodunnit has us questioning whether the lack of vitamin D from the sun played any role in our complicated, sometimes dangerous, love affair with milk. New DNA analysis of ancient farmers from sunny Spain suggests that this theory may have gone sour.
NPR thanks our sponsors
Become an NPR sponsor