When a person doesn't eat grains, he becomes lethargic, making it even easier to gain weight. By using grains to provide calories, you pre vent the need to burn protein as fuel.
這樣一來，減少支出就更容易胖。他表示，用米飯提供熱量，可避免把修補組織的蛋白質當成熱量燃燒。