Nutrition is directly or indirectly related to many diseases, such as iron deficiency anemia, iodine deficiency goiter, vitamin D and calcium deficiency rickets. Malnutrition and decreased immunity will increase the prevalence of infectious diseases. Nutritional imbalance often becomes the inducement of obesity, cardiovascular diseases and some tumors, which seriously affects human health and even life-threatening.
Malnutrition will affect endocrine function. Malnutrition in women can lead to amenorrhea, malnutrition in pregnant women can easily lead to premature delivery, and the fetus is prone to congenital malnutrition, congenital malformation or stillbirth. Malnutrition in men can lead to sexual dysfunction and affect fertility.
Rational nutrition is the most basic and important link of health care and disease prevention. Reasonable nutrition can promote tissue regeneration, enhance the body's resistance to diseases, promote growth and development, improve intelligence, and reduce morbidity and mortality. Patients can also shorten the course of disease and accelerate their recovery through diet deployment.