JJ Virgin is a triple-board certified nutrition expert, Fitness Hall of Famer, and four-time New York Times bestselling author specializing in metabolic health, muscle health, and healthy aging. She serves as Chair of A4M’s Profitable Practice Blueprint, Chief Metabolic Health Officer for Lindora Metabolic Health and Wellness, and Nutrition and Fitness Speaker for Tony Robbins.

A recognized leader in nutrition science, longevity, and health entrepreneurship, JJ is the founder of the Health Business Growth Collective and the creator of influential health concepts including Muscle Changes Everything and Aging Powerfully. Through her work, she helps individuals build strength, optimize metabolism, and maintain vitality as they age, while also mentoring health professionals in building impactful, scalable wellness businesses.

JJ has played a pivotal role in launching multiple New York Times bestselling books and seven-figure health brands, making her one of the most influential leaders in the health and wellness industry. Her media appearances include Dr. Phil, The TODAY Show, PBS, and TLC, where she shares practical strategies for improving metabolic health, body composition, and long-term resilience.

She is also the host of the Well Beyond 40 podcast, which has surpassed 23 million downloads and focuses on empowering people to age powerfully, build muscle, and take control of their health through science-backed nutrition and lifestyle strategies.