So what is Megan Thee Stallion's weight loss journey? Megan Thee Stallion's diet and exerciseMegan Thee Stallion made significant changes to her diet. Megan Thee Stallion's weight loss surgeryThere is no evidence to suggest that Megan Thee Stallion has undergone any weight-loss surgery. FAQsWhat is Megan Thee Stallion's weight loss journey? Megan's exercise routine includes anaerobic exercises, booty workouts, cardio with weight training, strength HIIT training, yoga, Pilates, and weight training.