A research-grade diet includes a lot of unsaturated fats — from foods such as nuts and seeds, avocado, olive oil and fatty fish — along with non-starchy vegetables (think leafy greens, broccoli, ...
Within the parameters of the keto diet, the main foods on the menu are meat, fish, eggs, dairy products, oils, avocado and nuts. Low-carbohydrate vegetables such as lettuce and cucumbers are ...