Surprisingly, a very low calorie diet usually results in weight gain rather than weight loss. Yes, you will lose weight after a while, but the body starts to slow down in order to conserve calories. Nuvo Ketosis Diet This is a natural defense mechanism designed to overcome the effects of a food shortage. As a result, weight loss slows down. Starvation has serious effects including tiredness and lack of energy. Later on, a combination of hunger, cravings and low mood may trigger an episode of binge eating.