Bilberry Leaf Ext.
Bilberry leaf extract is a supplement derived from the leaves of the bilberry plant. According to, bilberry leaf contains chemicals called tannins that can help improve diarrhea, as well as mouth and throat irritation, by reducing swelling (inflammation). There is some evidence that the chemicals found in bilberry leaves can help lower blood sugar and cholesterol levels.
Bilberry has been suggested as a treatment for retinopathy, which is damage to the retina. It has also exhibited protective effects against macular degeneration, glaucoma and cataracts, particularly when used with lutein. According to, bilberries improve eye health and protect against multiple conditions such as glaucoma, cataracts, and eye fatigue. Bilberry fruits (300-400 g/day) and extracts lowered blood sugar in 3 clinical trials on over 150 people with or at risk of type 2 diabetes. Bilberry also increased insulin release and sensitivity, which is important for preventing insulin resistance. Plus, it reduced sugar and insulin spikes after meals.
There are few high-quality clinical trials of bilberry supplements. However, results from a small clinical study (24 people) suggest that consuming bilberries may reduce gum inflammation and bleeding. According to study, an extract of bilberry was shown to dose-dependently reduce inflammation in a rat model.
The recommended dosage of bilberry fruit extract is most often used by adults in doses of 160-240 mg by mouth daily. Bilberry fruit and extract are considered generally safe, with no known side effects. However, it is important to be aware of possible side effects such as nausea or abdominal discomfort with bilberry use. Bilberry leaf is possibly unsafe to take in high doses or for a long time. As with any supplement, it is important to consult with a healthcare provider before taking bilberry leaf extract.
