Limitations in daily ration. When all of a sudden our body stops receiving the necessary amount of Vitamins and other important elements to support living, it may experience various problems. People with Anorexia Nervosa usually exclude almost all fat-based food from their meals, without recognizing the importance of balance. Protein all alone is not enough to provide the organism with what it needs. Anorectic people weigh them several times a day fearing to gain extra weight.