The major problem with complete starvation diets is the loss of body protein, primarily from muscle tissue. (paleoketogenicdiet.com)
To add some protein - packed peanut butter chunks, I added a chopped - up Lean Body Protein Bar in «Peanut Butter Chocolate Chip» flavor (how fitting). (noexcusesnutrition.com)
When your carbohydrate intake goes down, your body converts body protein into glucose. (KetoDietApp.com)