The dangers of unbalanced nutrition: 1, easy to lead to a decline in resistance, especially the lack of high-quality protein, vitamins, will make the synthesis of many immune substances is hindered, will make the resistance to reduce the susceptibility to disease. 2, easy to lead to a decline in muscle strength, because the nutritional imbalance to reduce the raw materials for muscle synthesis, and then prone to muscle loss and physical strength decline. 3, easy to lead to psychological disorders. Because many nutrients, especially micronutrients for the nervous system metabolic regulation is very strong, if there is a nutritional imbalance, easy to lead to the high incidence of mental disorders.