Findings from 24,593 Swedish women aged between 49 and 83 indicated that vitamin C use was associated with a 25 per cent increase in the incidence of cataracts. Among the older women – over the age of 68 – vitamin C supplements were associated with a 38 per cent increase in the risk of cataracts, report the researchers in the American Journal of Clinical Nutrition.
The findings were further complicated in women on hormone replacement therapy, where the supplements were associated with a 56 per cent increase in cataracts.
“Our results indicate that the use of vitamin C supplements may be associated with higher risk of age-related cataract among women,” concluded the researchers.
Source: American Journal of Clinical Nutrition
Published online ahead of print, doi:10.3945/ajcn.2009.28528
“Vitamin C supplements and the risk of age-related cataract: a population-based prospective cohort study in women”
Authors: S. Rautiainen, B. Ejdervik Lindblad, R. Morgenstern, A. Wolk