KETO FIT While it may sound a lot like Atkins, keto s usually restrict carbs even more and also keep protein intake lower. On the keto you’ll be able to eat seafood, poultry, and meat. You can also have cream, butter, eggs, and cheeses. Avocados, seeds, nuts, and low-carb veggies like onions, greens, peppers, and tomatoes are allowed in limited amounts. Going for good fats like dairy and extra-virgin olive oil offers the best results.