Infants should be routinely supplemented with vitamin D a few days after birth, at least until about two years of age; additional supplementation of other nutrients requires a doctor’s evaluation.
Vitamin D is found in very small amounts in conventional foods, making it difficult to meet a child’s growth and development. Fish liver contains more vitamin D, but the fishy flavor makes it difficult to adhere to. So it needs to be added additionally through dietary supplements.
Infancy refers to the period from birth to one year of age, which is the stage of extremely vigorous growth and development of children, but the digestive tract function of infants is not yet fully mature, and at this time the demand for nutrients is relatively high, so extra attention is needed in terms of nutrition.
Normally, infants can obtain the nutrition they need for growth and development through breast milk, milk powder, and complementary foods, and do not need to supplement with nutrients other than vitamin D. However, if the infant is not fed properly, or if the infant is not fed properly, or if the infant is not fed properly, or if the infant is not fed properly, the infant is not fed properly.
However, if the infant is not fed properly, has poor digestion and absorption, lack of sunlight and other factors, growth retardation, pale, crying at night, square skull, occipital baldness and other symptoms, it is recommended to consult a doctor for examination in a timely manner. If the infant is deficient in calcium, iron, zinc, vitamins, etc., it can be given the appropriate nutritional supplement as prescribed by the doctor.