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近期发表在《美国医学会杂志·眼科学卷》月刊网络版上的一项研究发现,每天补钙800毫克以上者同老年性黄斑变性(AMD)发病率上升存在关联,年龄较大的老年人更是受到钙过量的威胁。研究人员利用2007~2008年国家健康与营养调查的近3200名参与者的数据,来评估AMD同钙摄入量之间的关系。参与者中有248人通过眼底摄影诊断为AMD(约8%)。研究结果显示:与不补钙的参与者相比,钙摄取量最高(每天摄取量大于800毫克)的20%的人被诊断出患有
A recent study published in the online edition of the Journal of the American Medical Association Journal of Ophthalmology found that a daily calcium supplement of 800 milligrams or more was associated with an increased incidence of age-related macular degeneration (AMD). Older adults More is threatened by calcium overdose. Using data from nearly 3,200 participants in the 2007-2008 National Health and Nutrition Surveys, researchers evaluated the relationship between AMD and calcium intake. 248 of the participants were diagnosed with AMD by fundus photography (about 8%). The results of the study showed that 20% of those with the highest calcium intake (more than 800 mg daily) were diagnosed with a