Evidence supporting the use of: Bilberry
For the body system: Senses

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Synopsis

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

Bilberry (Vaccinium myrtillus) has a long history of use for supporting eye health and vision, which are key components of the Senses body system. Traditionally, bilberry was reputed to enhance night vision, especially among World War II pilots, though this specific claim remains anecdotal. Scientifically, bilberry is rich in anthocyanins—plant pigments with antioxidant and anti-inflammatory properties. Several laboratory and animal studies indicate that bilberry extracts can protect retinal cells from oxidative stress and improve microcirculation in ocular tissues.

Clinical evidence in humans is moderate. Some small randomized controlled trials suggest bilberry supplementation may help reduce eye fatigue, improve visual function in low light, and alleviate symptoms of certain eye conditions, such as mild diabetic retinopathy. However, results across studies are mixed, with some failing to find significant benefits. A 2015 systematic review concluded that while bilberry may have potential for eye health, more robust, high-quality clinical trials are needed to confirm efficacy and establish optimal dosing. There is no strong evidence that bilberry can prevent or treat major eye diseases like macular degeneration or glaucoma, but its antioxidant effects may support general ocular health. In summary, bilberry's use for the Senses system is supported by both tradition and moderate scientific evidence, particularly regarding eye health, but definitive clinical proof remains limited.

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