Jillian Michaels Jillian’s overwhelming success and unique connection with her audience was born from her own personal journey toward health and happiness. Having been an overweight child, Jillian’s passion for fitness stems from its transformative powers. She trained for 17 years in the martial arts practice of Muay Thai and Akauri-Do, in which she holds a black belt, and four personal training certificates from the leading certification programs in the United States and Canada: the National Exercise Sports Trainers Association (NESTA), CanFitPro, and the Aerobics and Fitness Association of America (AFAA). She is certified in Kettlebell Concepts and as a nutrition and wellness consultant with the American Fitness Professionals and Associates (AFPA). Jillian has also created JILLIAN MICHAELS BODYSHRED™, a continuing education program with AFAA for trainers and an intense group fitness class that is currently taught in numerous gyms across the United States and Canada.