Lose Fat, Keep Strength : One of the primary reasons people initially take up CrossFit is to improve body composition. A study on elite gymnasts compared the effects of a ketogenic diet with a typical western diet on performance measurements and body composition. The strength tests consisted of gymnastic movements that are also commonly found in CrossFit like push-ups, dips, and pull ups. The study revealed that there were no significant differences between the ketogenic diet and western diet group on the strength tests. The ketogenic diet group however did show a decrease in body weight and fat mass compared to the western diet group.