The Paleo DIET is a dietary plan based on the types of foods presumed to have been eaten by early humans living during the Paleolithic era. It is a modern nutritional plan that focuses on eating whole, unprocessed foods such as fruits, vegetables, nuts, seeds, and lean meats. The DIET also eliminates dairy, grains, legumes, and processed sugars. The goal of the Paleo DIET is to reduce inflammation and improve overall health.