Multivitamins are synthesized by combining multiple vitamins in certain proportional dosages, and are mainly used to prevent vitamin deficiencies due to inappropriate dietary structure. Multivitamins are mainly used to replenish vitamins in the body, and are suitable for people with irrational dietary structure, picky eaters and partial eaters; children and teenagers with rapid growth and development; and special groups of people, including pregnant women, the elderly, and vitamin-deficient patients with bad lifestyle habits. Supplementation of vitamins is a long-term, regular process, must be under the guidance of the doctor in accordance with the doctor’s orders dose reasonable supplementation, while choosing to meet the national standards of the regular dosage form. If the conclusion of the examination is a certain vitamin deficiency, you can supplement alone and do not have to supplement the multivitamin. It is recommended to take reasonable vitamin supplements under the guidance of a specialized doctor.