People constantly demand proof for the efficacy of the Primal eating plan. And I’m glad they do. The Primal Blueprint makes sense on an intuitive level, and those success stories we see every Friday sure are persuasive, but it’s also important to see broader support in the scientific literature. Many times, people demand proof without really wanting any; they assume it’s all imaginary just-so stories. “Where are the studies?” has become a retort rather than a legitimate query.

(This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Brock Armstrong)