Paleo diets cut out gluten, soy, alcohol, legumes, and dairy, which also means none of the refined sugars, trans fats, or processed foods that have been linked to many degenerative diseases. The "caveman" approach focuses on getting nutrition solely from lean proteins, fruits and veggies, and healthy fats that are compatible with the human digestive system. If you are all-in on Paleo, find a Paleo meal delivery service to make your healty lifestyle easier to maintain.