BONUS: He was censored by the U.S. government. What that means for food research

More with Kevin Hall! Until recently, Hall was the U.S. National Institutes of Health’s key researcher on the connection between ultra-processed foods and obesity. He took an early retirement due to increasing censorship of his work. He talks about his groundbreaking study with former “The Biggest Loser” contestants, the link between Big Tobacco and Big Food, and why Canadian scientist expats like him may soon be looking to return home.