Professors David Raubenheimer and Stephen Simpson argue in their book, Eat Like the Animals, that over the course of recent decades the share of calories from protein in people's diets has declined (especially in the US). RaboResearch's Nick Fereday covered the topic in a recent report that generated quite some feedback. Therefore, we invited the professors to explain their hypothesis in greater detail. The resulting podcast is a truly fascinating listen. Everything you wanted to know about protein is explained; also, the so-what of the thesis for food companies is addressed.