Fitness Entrepreneur Morgan Kline Reveals Two Core Habits for Building Muscle

Morgan Kline grew up as a multi-sport athlete but lost her structured workouts after college, prompting a shift in how she related to her body. In 2012 she and her husband Devan launched Burn Boot Camp, a franchise that deliberately omits mirrors to encourage trainer-guided form. Kline now trains four to five days a week, prioritizing compound movements—deadlifts to strengthen glutes, hamstrings, back and core, and pull-ups to develop arms, shoulders, lats and core—both of which translate to everyday activities like lifting her children.

Her dietary strategy is uncomplicated, centering each meal around whole-food protein such as chicken, ground beef, eggs or plant-based powder, complemented by carbs and fats. This regimen, she says, allows her to focus on functional fitness and setting a healthy example for her family rather than constantly chasing aesthetic goals.