Antioxidants have been shown to help prevent a number of long-term illnesses such as heart disease, cancer, and an eye disorder called macular degeneration. Bilberry also contains vitamin C, which is another antioxidant.
Antioxidants have been shown to help prevent a number of long-term illnesses such as heart disease, cancer, and an eye disorder called macular degeneration. Bilberry also contains vitamin C, which is another antioxidant.
Often associated with improvement of night vision, bilberries are mentioned in a popular story of World War II RAF pilots consuming bilberry jam to sharpen vision for night missions.
Diabetes
Bilberry leaves have traditionally been used to control blood sugar levels in people with diabetes. Animal studies suggest bilberry may be effective, but no human studies have been done, so bilberry is not recommended for this use.
Atherosclerosis
Animal studies have found that anthocyanosides may strengthen blood vessels, improve circulation, and prevent the oxidation of LDL ("bad") cholesterol, a major risk factor for atherosclerosis (plaque that blocks blood vessels, leading to heart attack and stroke). Research in people is needed.
Diarrhea and wounds
Bilberry has been used in European medicine for nearly a thousand years, primarily to treat diarrhea. The fruit contains tannins, substances that act as both an anti-inflammatory and an astringent (constricting and tightening tissues). Bilberry is believed to help people with diarrhea by reducing intestinal inflammation. No studies, however, examine bilberry's use for diarrhea.
Vision
Anthocyanosides found in bilberry fruits may also be useful for people with vision problems. During World War II, British fighter pilots reported improved nighttime vision after eating bilberry jam. Studies have shown mixed, mainly negative results, however. Bilberry has also been suggested as a treatment for retinopathy (damage to the retina) because anthocyanosides appear to help protect the retina. Bilberry has also been suggested as treatment to prevent cataracts. However, studies are lacking in both areas.
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