人们一般认为维生素B_(12)具有“补血”作用,其实,维生素B_(12)只是在治疗恶性贫血时才有效,而对极为常见的缺铁性贫血却并无多大意义。近年来,临床发现,维生素B_(12)对男性生育功能有重要影响,缺少该种维生素,男性的生殖腺——睾丸就将发育不良,精子的形成就会发生障碍、最终将导致不育症。因而有人称它为男子汉的维生素。 It is generally believed that vitamin B_ (12) has the effect of “blood enrichment”. In fact, vitamin B_ (12) is only effective in treating pernicious anemia, but not very common in iron deficiency anemia. In recent years, clinical findings, vitamin B_ (12) has an important impact on male reproductive function, the lack of such vitamins, male gonads - testis will be stunted, the formation of sperm barriers will occur, will eventually lead to infertility. Some people call it a man’s vitamin.