<p>Science writer Julia Belluz of Vox.com talks to EconTalk host Russ Roberts about the state of epidemiology, nutrition, and the relationship between obesity and metabolism.</p>

A.J. Jacobs on Thanks a Thousand

EconTalk: Conversations for the Curious is an award-winning weekly podcast hosted by Russ Roberts of Shalem College in Jerusalem and Stanford's Hoover Institution. The eclectic guest list includes authors, doctors, psychologists, historians, philosophers, economists, and more. Learn how the health care system really works, the serenity that comes from humility, the challenge of interpreting data, how potato chips are made, what it's like to run an upscale Manhattan restaurant, what caused the 2008 financial crisis, the nature of consciousness, the conflicts and history of the Middle East, and more. EconTalk has been taking the Monday out of Mondays since 2006.  All 1000+ episodes are available in the archive. Go to EconTalk.org for transcripts, related resources, and comments.