Paleo and Atkins are two popular diets that have been around for many years. Paleo is a DIET based on the types of food presumed to have been eaten by early humans, consisting mainly of meat, fish, vegetables, and fruit, and excluding dairy or grain products and processed food. Atkins is a low-carbohydrate DIET that was developed in the 1970s by Dr. Robert Atkins. It focuses on reducing carbohydrates and increasing protein and fat intake. Both diets have been found to be effective for weight loss and overall health.