硒是人体不可或缺的十四种微量元素之一,微量元素作为酶、激素、维生素、核酸的成份,维持生命的代谢过程,有比蛋白质、脂肪、维生素更重要的营养作用,且机体自身不能制造,必须取之于外界,已逐渐引起人们的注意。硒在抗氧化和抗衰老方面有着重要作用。20世纪50年代,我国曾有一项针对克山病(又称地方性心肌病,表现为急 Selenium is one of the fourteen trace elements essential to the human body. Trace elements, as enzymes, hormones, vitamins and nucleic acids, maintain life’s metabolic processes and have more important nutritional effects than proteins, fats and vitamins, and the body itself Can not create, must be taken from the outside world, has gradually attracted people’s attention. Selenium plays an important role in antioxidation and anti-aging. 1950s, China had a Keshan disease (also known as endemic cardiomyopathy, the performance of acute