Low-carb diets are often thought of as high in protein, and indeed, getting sufficient protein is the foundation of most low-carb diets. However, this does not have to mean a diet very high in protein.
The National Academy of Sciences recommends an upper limit of 35% of calories coming from protein. This is generally in accord with the recommendations of low-carb diet authors. In fact, protein intake tends to be self-limiting -- people would usually have to force themselves to eat too much protein.
