I believe most of these diets promote low carb, high fat, moderate protein. In general consuming more protein than needed for cellular maintenance does little g

I believe most of these diets promote low carb, high fat, moderate protein. In general consuming more protein than needed for cellular maintenance does little good and gets converted to energy through additional steps; since it's easier to get energy from carbs or fat it makes sense to consume only enough protein, not less, not more.