AREDS2

AREDS2 (Age-Related Eye Disease Study 2) was a large clinical trial that investigated how certain vitamins and nutrients affect the progression of age-related macular degeneration (AMD), a common cause of vision loss in older adults. The study found that adding formulas with antioxidants (like vitamins C and E), zinc, and omega-3 fatty acids could slow or reduce the risk of advanced AMD. It also explored the effects of lutein and zeaxanthin, found in leafy greens, as safer alternatives to high-dose beta-carotene, especially for smokers. Overall, AREDS2 provided evidence-based guidance for nutritional supplementation to support eye health in AMD patients.