There is no such thing called NO carb diet, it is not possible, however there is low carb diet,. Low carb diet means restriction of carbohydrates in the diet usually for weight loss and for treating obesity. Foods that are high in carbs are replaced with low carb foods and those that have proteins and fats. For example: These high crab foods like: meat, poultry, fish, shellfish, eggs, cheese, nuts, seeds, peanuts, and soy products are replaced with : salad vegetables, fruits especially berries, etc.