"Calcium supplementation of more than 800 mg/day is associated with an increased prevalence of age-related macular degeneration (AMD), especially in older individuals, according to a cross-sectional study of National Health and Nutrition Examination Survey (NHANES) data."
Calcium Supplements Tied to Higher Risk of Age-Related Vision Disease. Scientific American. Will Boggs, M.D. http://www.scientificamerican.com/article/calcium-supplementation-tied-to-higher-risk-of-amd-in-older-adults/?WT.mc_id=SA_Facebook
