Evidence supporting the use of: Berries (unspecified)
For the body system: Eyes

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Synopsis

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

Berries, particularly those rich in anthocyanins such as bilberries, blueberries, and black currants, have a history of traditional use in supporting eye health, but there is also emerging scientific evidence supporting their benefit. Studies have shown that anthocyanins possess antioxidant properties that may protect retinal cells from oxidative stress and light-induced damage, potentially slowing the progression of certain eye disorders. For example, bilberry extract has been investigated for its effects on night vision and visual fatigue, with some small clinical trials suggesting modest benefits. Blueberries and other berries are also high in vitamin C and other antioxidants, which may contribute to the maintenance of healthy blood vessels in the eyes and reduce the risk of age-related macular degeneration (AMD) and cataracts. However, while laboratory and animal studies provide promising results, large-scale, high-quality human clinical trials are still limited. Thus, while there is a scientific basis for the belief that berries support eye health, the evidence is not yet robust enough to warrant strong claims. Continued research is needed to better understand the mechanisms and efficacy of berries in maintaining and improving eye function.

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