The red, blue, or violet colour of the skin of Vaccinium fruit is due to organic chemicals; and the anthocyanosides, which derive from these are the key to the beneficial effects of the fruit. At least 15 different anthocyanoside compounds have been identified from bilberry extracts. In addition there are up to 7% tannins, several alkaloids, twelve different phenolic acids and three glycosides which may all play a positive role for medicinal benefit.
The most effective medicinal use for bilberry/blueberry extract appears to be for improving micro-circulation, thus its effects on the capillaries serving the eyes, mucous membranes of the digestive and pulmonary systems.
Bilberry (Vaccinium myrtillus) can help with the following
Macular Degeneration
Bilberry contains compounds which act as antioxidants in the retina, making it a possible preventive measure for macular degeneration [Klin Monatsbl Augenheikld Beih 1981;178: pp.386-9]. It also strengthens capillaries in the retina and reduces hemorrhaging [Minerva Med 1977;68: pp.3565-81]. An oral dose is in the range of 40 to 80mg (24% anthocyanosides) per day.
Myopia (near sightedness)
Italian researchers, working between 1982 and 1987, reported that 76% of patients in their trials experienced a marked improvement in their myopia (short-sightedness) after being given 150mg per day of a blueberry extract, plus vitamin A, for 15 days.
Key
| May do some good |
| Likely to help |
Glossary
Mucous Membranes
The membranes, such as the mouse, nose, anus, and vagina, that line the cavities and canals of the body which communicate with the air.
Pulmonary
Pertaining to the lungs.