Track your paleo diet, health and weight Loss with this 50-page workbook. The Paleolithic diet, Paleo diet, caveman diet, or stone-age diet is a modern fad diet requiring the sole or predominant eating of foods presumed to have been available to humans during the Paleolithic era.The Paleo Diet is the only diet proven by nature to fight disease, provide maximum energy, and keep you naturally thin, strong, and active-while enjoying every satisfying and delicious bite.