When Atlantic journalist and physician James Hamblin investigated the world of gluten-free products, he found a $23 billion industry of "detox courses," custom blood tests, and specially formulated foods—but no medical evidence that avoiding gluten is good for people who don't have celiac disease. Kiera interviews Hamblin, author of the new book If Our Bodies Could Talk: A Guide to Operating and Maintaining a Human Body, about the gluten-free boondoggle, how multivitamins can make people less healthy, and more reasons why people are so susceptible to health quackery. Then we reveal a recipe for a delicious snack created by a pro-athlete-turned-pastry-chef—the “She Persisted Bar”—to give you fuel when you’re protesting.