Children need to take appropriate supplements when they are deficient in multivitamins and do not need additional supplements if they are not deficient in vitamins. Vitamins are a class of nutrients that the human body uses to maintain normal physiological functions. They play an important role in human growth, metabolism and development. Generally speaking, most of the vitamins can be obtained through a normal balanced diet, do not need to take additional vitamin preparations for supplementation. If a deficiency occurs, then appropriate supplementation is required. In addition, children are at a critical stage of growth and development and have a higher need for vitamins than adults. It is important to note that children should avoid single foods in their diet. For some ingredients, such as vegetables and fruits, avoid cooking at high temperatures to avoid the loss of vitamins. If symptoms of vitamin deficiency have occurred, you need to consult a doctor and take the appropriate vitamins under the guidance of the doctor.