Bilberry has historically been used in foods and for treating various medical conditions. For example, bilberry jam was used by British pilots in World War II to enhance their night vision. Although the use of bilberry for treating eye problems and other medical conditions continues, its benefits have not been substantiated scientifically. Therefore, as with any new therapy, talk to your doctor before using bilberry herbal supplements.
Identification and Dosing
Bilberry is a plant whose fruit and leaves are used medicinally. It is also commonly known as bog bilberries, European blueberry, whortleberry, and huckleberry. The fruit is eaten whole or made into an extract, while the leaves are typically brewed to make a tea. The fruit extract has been used in a dose of 160 mg taken three times daily to improve night vision, reports Drugs.com.
Uses
According to the National Institutes of Health (NIH), bilberry fruit is used for a variety of health problems and conditions, such as diarrhea, eye complaints, varicose veins, circulation problems and menstrual pain. It has also been used for mild soreness of the mouth and throat, kidney troubles, arthritis, gout and vision problems, notes Drugs.com. Bilberry leaf is used to treat different types of conditions, such as diabetes, reports the NIH.
Effectiveness
There is no scientific evidence that bilberry is effective for any health condition, reports the NIH. However, according to Natural Medicines Comprehensive Database (NMCD), bilberry is possibly effective for treating retinal problems related to diabetes and high blood pressure. The NMCD also states that, because of conflicting scientific information, bilberry is possibly not effective for enhancing night vision.
Considerations
According to the NIH, bilberry fruit is considered safe to use when taken in quantities typically found in foods or in usual doses of the extract for a short time. However, Drugs.com reports that, while rare, allergic reactions to bilberry may happen. Bilberry leaf may lower blood sugar in diabetics, so close monitoring is required, reports the NMCD. Bilberry leaf is not considered safe when taken in high doses for a long time because of potentially dangerous side effects, notes the NIH.
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