The Paleo diet is a gluten-free, grain-free, legume-free, dairy-free and sugar-free diet. The foods that constitute the foundation of the Paleo diet are lean proteins, from free-range eggs, free-range chicken, wild-caught fish and seafood and grass-fed meat, as well as seasonal vegetables and fruits and healthy fats from avocado, coconut oil, olive oil and nuts and seeds. The Paleo way of eating is high in nutrients, antioxidants and omega-3 fats, while being low in carbohydrate, moderate in protein and high in fat.