Evidence supporting the use of: Black currant
For the body system: Eyes

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Synopsis

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

Black currant (Ribes nigrum) is used to support eye health due to its high content of anthocyanins, a type of flavonoid with antioxidant properties. Scientific studies, primarily from Japan and Europe, have investigated black currant extract for its potential benefits in eye fatigue, intraocular blood flow, and adaptation to darkness. Several small clinical trials have shown that black currant anthocyanins may improve ocular blood flow and reduce visual fatigue, particularly in people who spend extended periods in front of digital screens. For example, a 2012 study published in the journal Alternative Medicine Review found that supplementation improved visual function and dark adaptation in healthy volunteers. Animal and in vitro studies also suggest that black currant anthocyanins can protect retinal cells from oxidative damage, a factor in age-related eye disorders. However, the number and size of human clinical trials remain limited, and more robust, large-scale research is needed to confirm these effects and clarify mechanisms. Overall, there is some scientific basis for black currant’s use in supporting eye health, but the evidence is moderate, not conclusive.

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