Most studies of diets in glucose intolerance and type 2 diabetes have focused on intake of fat, carbohydrate and fiber.Instead we have focused on diets and in two studies found marked improvements of cardiometabolic disease i.e.cardiovascular disease and diabetes mellitus over a three month period with a diet based on fish, meat, fruits, vegetables, root vegetables, eggs and nuts-a Paleolithic diet, as compared to a Mediterranean or a Diabetes diet respectively.The Paleolithic diet was mainly lower in cereals and dietary products and higher in fruits and meat as compared to the Mediterranean or Diabetic diet.The Paleolithic diet was also lower in total energy and more satiating per calorie.