Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Anthocyanins, a group of flavonoid pigments found in berries, red cabbage, and other deeply colored fruits and vegetables, have been investigated for their potential role in supporting eye health, including the prevention or treatment of cataracts. Cataracts involve the clouding of the eye’s lens, often due to oxidative stress and aging. Anthocyanins are known for their antioxidant properties, which may help neutralize free radicals and reduce oxidative damage to the lens proteins, a key factor in cataract formation.

Some animal and in vitro studies have demonstrated that anthocyanin extracts can protect lens cells from oxidative damage, and a few small human observational studies suggest that diets high in anthocyanin-rich foods are associated with a lower risk of cataract development. However, well-controlled clinical trials specifically testing anthocyanin supplementation for cataract prevention or treatment in humans are lacking, and the available studies often use mixed antioxidant formulas, making it difficult to isolate the effects of anthocyanins alone.

In summary, while there is a plausible scientific rationale and preliminary evidence from laboratory and observational studies, the clinical evidence in humans is limited and not yet conclusive. Therefore, the support for anthocyanins in the context of cataract prevention or treatment is based on early scientific findings and requires more robust clinical research to confirm efficacy.

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