Evidence supporting the use of: Vitamin C (not specified)
For the body system: Eyes

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Vitamin C (ascorbic acid) is scientifically recognized for its role in supporting eye health, particularly in relation to its antioxidant properties. Oxidative stress is a major factor in the development of several eye diseases, including cataracts and age-related macular degeneration (AMD). Vitamin C helps protect ocular tissues from oxidative damage by neutralizing free radicals. Several large epidemiological studies, such as the Age-Related Eye Disease Study (AREDS), have investigated the effect of antioxidant supplementation (including vitamin C) on eye health. While the AREDS formula, which contained vitamin C along with other antioxidants and minerals, was shown to reduce the risk of progression to advanced AMD in individuals with intermediate or advanced disease, the contribution of vitamin C alone is less clear. Nevertheless, observational studies have found that people with higher dietary intakes of vitamin C tend to have a lower risk of developing cataracts. Despite some inconsistencies and the fact that vitamin C is typically studied in combination with other nutrients, there is moderate scientific evidence supporting its role in maintaining eye health and possibly slowing the progression of certain eye conditions.

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