近年来在国内外,维生素 B_(12)备受推崇,有人甚至封它为“长寿维生素”。德国医生杜尔研究发现,维生素 B_(12)是遏止人体老化的最有效的维生素,它对于老年人贫 In recent years, vitamin B_(12) has been highly respected at home and abroad, and some people have even called it “longevity vitamin.” The German doctor Doerr research found that vitamin B_(12) is the most effective vitamin to stop the aging of the human body. It is poor for the elderly.