Johnson L E
Department of Family Medicine, University of Cincinnati Medical Center, Ohio.
Arch Fam Med. 1994 Sep;3(9):809-20. doi: 10.1001/archfami.3.9.809.
The recommended dietary allowances for vitamins are designed to estimate the levels of intake needed to prevent known deficiency states in most healthy people. Evidence is now accumulating that some vitamins may have health-promoting benefits in amounts higher than the current recommendations. The antioxidant properties of vitamins may play a role in treating or preventing a variety of disorders, including atherosclerosis, age-related cataracts and macular degeneration, and some cancers. This article reviews the possible risks and benefits of high intakes of antioxidant vitamins, including the controversy about supplementation.
维生素的推荐膳食摄入量旨在估计大多数健康人预防已知维生素缺乏状态所需的摄入量水平。目前越来越多的证据表明，某些维生素摄入量高于当前推荐量时可能具有促进健康的益处。维生素的抗氧化特性可能在治疗或预防多种疾病中发挥作用，包括动脉粥样硬化、年龄相关性白内障和黄斑变性以及某些癌症。本文综述了高剂量摄入抗氧化维生素可能存在的风险和益处，包括关于补充剂的争议。
