美容院培训：营养补充剂的健康价值课件.pptVIP

* * *  * * The Established Populations for Epidemiological Studies of the Elderly was conducted by the National Institute on Aging, USA from 1984-1993. 11,178 men and women aged 67 to 105 participated in the study. During a three year follow-up period, there were 3490 deaths, 1101 from cardiovascular disease, and 761 from cancer. Use of vitamin E reduced the risk of death by any cause (relative risk (RR) = 0.66) and risk of death from coronary heart disease (RR= 0.53). Use of both vitamins E and C reduced the risk of total mortality (RR= 0.58) and death from heart disease (RR = 0.47) to a greater extent than vitamin E alone. There was no risk reduction for users of vitamin C alone. The synergies between vitamin C and E are well documented. Vitamin C regenerates the radical scavenging ability of vitamin E in preventing lipid peroxidation. Reference: Losonczy K, Harris T, Havlik R. Vitamin E and vitamin C supplement use and risk of all-cause and coronary heart disease mortality in older persons: the Established Populations for Epidemiological Studies of the Elderly. Am J Clin Nutr 1996; 64: 190-6. * * * * * * * * * * * * * * * * * * Response of Homocysteine Blood Levels to different Vitamin Supplements in Men with Elevated Homocysteine Levels ( 16 ?mol/L) Ubbink et al.: J. Nutr. 124 (1994) N = 20 per group; folic acid: 0.65 mg; B6-HCl: 12.2 mg; B12: 0.4 mg; 6 weeks 细胞(器)膜: —CH=CH—多不饱和脂肪酸 Vit E [O]，H2O 脂褐素 —CH—CH2—过氧化脂质 (老年斑) O—OH 谷苷胱肽过氧化物酶 还原型巯基2GSH (硒) Vit C 氧化型巯基GSSH —CH—CH2— 醇 OH CO2+H2O 营养素抗氧化作用 ＤＭ和健康者Vit C营养状况比较 多种维生素补充剂 一片多种维生素矿物质补充剂 几乎含有所有的维生素矿物质 其含量约达到美国100％的RDA水平 传统的认识: 现代的认识: 仅仅摄入预防典型缺乏症所需维生素矿物质的量，而不是建议摄入太多的量! 从膳食和补充剂中摄入维生素及矿物质以达到人体最佳健康状态和预防疾病的目的 6