With her new book--Essential Sports Nutrition: A Guide to Optimal Performance for Every Active Person--releasing, Ironman, sports dietician, coach, and author Marni Sumbal dropped by to discuss all things sport nutrition. We take a peak inside the cover and share advice on fueling before, during, and after training. Plus, we share some of Marni's favorite recipes!

To order your copy visit: https://www.amazon.com/Essential-Sports-Nutrition-Optimal-Performance/dp/1641521694/ref=sr_1_1?ie=UTF8&qid=1540425049&sr=8-1&keywords=marni+sumbal