Melody Schoenfeld, MA, CSCS, is a certified personal trainer with over 25 years of training experience in many different disciplines. She holds a master's degree in health psychology and writes and speaks both nationally and internationally on a wide variety of health and fitness subjects. She is the owner of Flawless Fitness, a personal training center in Pasadena, California. In 2019, she was recognized as NSCA's Personal Trainer of the Year.

Schoenfeld has held state and national records in all three lifts in powerlifting (squat, bench press, and deadlift) and competes in powerlifting and strongman competitions. An aficionado of old-time strongman shows of strength, she performs feats such as tearing phone books and license plates in half and bending steel rebar, horseshoes, and nails. She is the self-published author of Pleasure Not Meating You. In her free time, you'll find her cooking unreasonably large quantities of vegan food, fronting a few heavy metal bands, and telling horrible jokes.

Susan Kleiner, PhD, RD, CNS, FACN, FISSN, is the founder and owner of the internationally recognized consulting firm High Performance Nutrition LLC. A visionary educator and motivator, she speaks nationally and internationally on topics in the field of nutrition, health, and performance. She is a sought-after expert interview as well as writer in all forms of print, online, and broadcast media. She has authored eight books, including the bestseller The New Power Eating, The Good Mood Diet, and The PowerFood Nutrition Plan.

Kleiner has been the high-performance nutrition consultant to professional athletes and teams nationally and internationally, including the Seattle Storm, Seattle Reign, Seattle Seahawks, Seattle Mariners, Seattle Supersonics, Cleveland Browns, Cleveland Cavaliers, Miami Heat, Olympians, and elite and recreational athletes of all ages in countless sports.

She is a cofounder and fellow of the International Society of Sports Nutrition and a fellow of the American College of Nutrition. She is also a member of the American College of Sports Medicine and the National Strength and Conditioning Association.