What does it mean to be a greatist? We asked Kellie Davis, professional writer, fitness coach, and mom (aka Mother Fitness). From her go-to healthy breakfast to her most kick-ass workout routine, read on for an inside look at what Kellie Davis does to stay happy, healthy, and in rockin' shape. To learn more about Kellie Davis, visit MotherFitness.com, and follow her on Twitter at @KellieHartDavis. Are you a greatist, too? Tell us about your #imagreatist healthy habits in the comments below. Photo by Tim Pannell; Design by Bob Al-Greene.