Evidence supporting the use of: Berry
For the body system: Veins

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Synopsis

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

Berries, particularly those rich in anthocyanins such as bilberry (Vaccinium myrtillus), have been used both traditionally and in modern supplements to support vein health and circulation. Scientific studies have demonstrated that anthocyanins, the pigments responsible for the deep coloration of many berries, possess antioxidant and anti-inflammatory effects that may benefit the vascular system. Several clinical trials, especially on bilberry extracts, have suggested improvements in symptoms of chronic venous insufficiency (such as leg swelling, pain, and heaviness) and increased capillary resistance.

For instance, a review published in "Phytomedicine" (2015) concluded that anthocyanin-rich extracts can improve microcirculation and capillary strength. The mechanisms proposed include protection of endothelial cells, reduction of oxidative stress, and enhancement of nitric oxide production, which helps relax blood vessels. However, while the evidence is promising, most studies have focused on specific berries (like bilberry and black currant) and often use standardized extracts at higher concentrations than typically found in a regular diet.

In summary, there is moderate scientific evidence (rating: 3) supporting the use of certain berry extracts for vein health, particularly in relation to chronic venous insufficiency and capillary fragility. However, more large-scale, high-quality clinical trials are needed to confirm their efficacy and determine optimal dosages.

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