THE PALEO LIFESTYLE by Mike Mackey. Once considered obscure and fringe, the Paleo diet has become quite popular in recent years. While it remains somewhat controversial, Paleo has taken a prominent place in today’s pantheon of low carbohydrate eating plans. This prominence has no doubt been substantially bolstered by its adoption in the Cross-Fit community as the recommended way to lose fat, gain muscle, and support a high-energy, athletic lifestyle.