因此，男人过了40岁，就应该注意补充3种关键的维生素，以增强抵抗力，预防疾病。参考文献:1. Rondanelli M， Miccono A， Lamburghini S， et al. Self-Care for Common Colds: The Pivotal Role of Vitamin D， Vitamin C， Zinc， and Echinacea in Three Main Immune Interactive Clusters Involved during an Episode of Common Colds-Practical Advice on Dosages and on the Time to Take These Nutrients/Botanicals in order to Prevent or Treat Common Colds. Evid Based Complement Alternat Med. 2018;
