Nutritional deficiency diseases

Nutritional deficiency refers to various disease symptoms caused by insufficient nutrient intake. It is a type of malnutrition. It mainly includes the following three types: Vitamin deficiency: Deficiency of vitamin A, vitamin B, vitamin C, vitamin D, vitamin E, etc. Protein deficiency Trace element deficiency: Trace elements such as zinc, calcium, iron, and selenium are essential nutrients for children during growth and development. This disease is common in children and adolescents. The main symptoms vary depending on the deficient nutrient.