Jen Widerstrom

Joined: May 14, 2025

Jen Widerstrom is a powerhouse in the health and wellness space, widely recognized for her heart-first approach to fitness and life transformation. Best known as the compassionate coach on NBC’s The Biggest Loser, Jen has inspired millions with her authentic guidance and unwavering support for real people making real change. Her presence in the fitness entertainment world began as "Phoenix" on NBC’s reboot of American Gladiators, where she showcased both her athleticism and her dynamic on-screen energy. Since then, Jen has become a trusted voice in the industry, serving as Fitness Director for SHAPE Magazine and sitting on the board of its prestigious Brain Trust. Jen is a core coach and trusted voice within Arnold’s Pump Club, where she works closely with longtime friend Arnold Schwarzenegger to inspire a global community to build better health, strength, and mindset. In addition to her work with the Pump Club, Jen is a nationally recognized expert featured on LIVE with Kelly and Ryan, The Doctors, and Dr. Oz, where she delivers practical, results-driven advice on fitness, nutrition, and sustainable behavior change. A best-selling author of Diet Right for Your Personality Type, Jen blends the science of behavior with practical wellness strategies, making sustainable health accessible for everyone. With an academic background in community leadership and a passion for helping others begin—or begin again—Jen continues to be a motivating force for people around the world. Her mission is simple but powerful: to guide others toward lasting transformation with empathy, energy, and expertise.