Zach Bitter is an elite ultrarunner and last December at the Desert Solstice 24-Hour Race in Phoenix, Zach broke the American 100-mile record with a time of 11:47:21. He went on to also set a new world record for distance run in 12 hours, covering 101.66 miles. Zach uses a high-fat, lower-carb, moderate-protein diet to Read More

Brock Armstrong is the popular co-host of the Ben Greenfield Fitness podcast, an endurance sports coach at Skywalker Fitness, and avid endurance athlete. For the first time ever he opens up on a podcast about his past, telling his story of experiencing an illness that led to multiple heart failures and near-death experiences, which ultimately transformed Read More