Zane Griggs is a fitness expert, author, podcast host, and creator of The MetaFlex Method, a science-based approach designed to help adults over 40 improve metabolic health, build strength, and maintain energy and vitality as they age. For more than 25 years, he has helped thousands of men and women develop sustainable fitness and nutrition habits that support long-term health and performance.

After beginning his career as a personal trainer in 1998, Zane recognized that the strategies that work earlier in life often become less effective with age. His work focuses on helping people adapt their approach to exercise, nutrition, recovery, and lifestyle to support changing metabolism, preserve lean muscle, optimize performance, and promote healthy aging.

Zane served as an off-camera coach for the television series Extreme Weight Loss and is the host of the Healthy A.F. (Healthy After Fifty) podcast, where he shares practical, evidence-informed strategies for improving metabolic health, increasing resilience, and living an active life well beyond midlife.

Through his coaching, speaking engagements, and MetaFlex community, Zane empowers individuals to move beyond restrictive dieting and unsustainable fitness trends by building lasting habits that support strength, confidence, and lifelong wellness. His mission is to help people stay strong, capable, and energized for the decades ahead.