Plants are very good sources of antioxidants.
--------------------
Antioxidant nutrient intake and the long-term incidence of age-related
cataract: the Blue Mountains Eye Study.
Am J Clin Nutr. 2008 Jun;87(6):1899-905.
Tan AG, Mitchell P, Flood VM, Burlutsky G, Rochtchina E, ***ming RG,
Wang JJ.
Department of Ophthalmology, Centre for Vision Research, Westmead
Millennium Institute, University of Sydney, Sydney, NSW, Australia.
BACKGROUND:
Oxidative stress has been implicated in cataractogenesis. Long-term
intake of antioxidants may offer protection against cataract.
OBJECTIVE: We investigated relations between antioxidant nutrient
intakes measured at baseline and the 10-y incidence of age-related
cataract.
DESIGN:
During 1992-1994, 3654 persons aged >or=49 y attended baseline
examinations of the Blue Mountains Eye Study (82.4% response). Of
these persons, 2464 (67.4%) participants were followed >or=1 time
after the baseline examinations (at either 5 or 10 y). At each
examination, lens photography was performed and questionnaires were
administered, including a 145-item semiquantitative food-frequency
questionnaire. Antioxidants, including beta-carotene, zinc, and
vitamins A, C, and E, were *****sed. Cataract was *****sed at each
examination from lens photographs with the use of the Wisconsin
Cataract Grading System. Nuclear cataract was defined for opacity
greater than standard 3. Cortical cataract was defined as cortical
opacity >or= 5% of the total lens area, and posterior subcapsular
(PSC) cataract was defined as the presence of any such opacity.
RESULTS:
Participants with the highest quintile of total intake (diet +
supplements) of vitamin C had a reduced risk of incident nuclear
cataract [adjusted odds ratio (OR): 0.55; 95% CI: 0.36, 0.86]. An
above-median intake of combined antioxidants (vitamins C and E, beta-
carotene, and zinc) was associated with a reduced risk of incident
nuclear cataract (OR: 0.51; 95% CI: 0.34, 0.76). Antioxidant intake
was not associated with incident cortical or PSC cataract.
CONCLUSION:
Higher intakes of vitamin C or the combined intake of antioxidants had
long-term protective associations against development of nuclear
cataract in this older population.
PMID: 18541583 [PubMed - in process]
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Jesus Was A Vegetarian!
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