Marni Sumbal R.D. C.S.S.D.

Marni Sumbal holds a master of science in exercise physiology, is a board-certified sport dietitian and owns the Greenville, South Carolina–based Trimarni Coaching and Nutrition where she coaches endurance athletes. She has authored several books on running and nutrition and is a six-time Ironman World Championship finisher. She enjoys traveling, being in nature and spending time in the community with her certified therapy dog Sunny.