About the Expert
Meet Roi Panupong Tonnaim — Your Fasting Authority
With over a decade of experience in health optimization, Roi has helped hundreds of clients transform their lives through the strategic science of fasting. His approach blends cutting-edge research on autophagy and metabolic health with practical, sustainable protocols tailored to each individual's body type, lifestyle, and goals. Roi doesn't believe in quick fixes — he builds lasting habits that rewire your relationship with food, energy, and performance.
Backed by internationally recognized certifications and real-world results, Roi combines deep expertise in nutrition coaching, high-intensity training, and natural movement to create holistic programs that go far beyond simple calorie restriction.
Precision Nutrition Level 1
Certificate in Nutrition & Coaching
ACE Certified Personal Trainer
American Council on Exercise
PN CDS — Intermittent Fasting
Coaching Dietary Strategies
ASFA HIIT Certification
American Sports & Fitness Assoc.
MovNat Certified Trainer L2
Natural Movement Specialist