Why remove all carbs. Carbs are just as important as the other macronutrients (i.e. fat, protein). A better idea might be to cut out all refined carbs (like sugars, syrups, highly refined grain/white bread, etc) and rich, high fat foods. I've had very bad luck by removing carbs completely, but I can usually get much leaner by aiming for less processed carbohydrate like fruits, starchy veggies and whole grains, and choosing good proteins.
Just my 5c, but cutting all carbs from your diet seems a bit extreme, and possibly unhealthy.
But yes, lowfat dairy and lean poultry, fish and meat are excellent sources of protein. There must be at least 15,000 different tasty meals that can be made with fish...