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Nutritionally beneficial aid for the control of high blood sugar levels and can encourage insulin production.
Animal studies suggest that bilberry leaves may be helpful for improving blood sugar control in diabetes, and also in lowering blood triglycerides.
In a 4-week, double-blind, placebo-controlled study of 40 people with haemorrhoids, oral use of bilberry extract significantly reduced haemorrhoid symptoms as compared to placebo.
A double-blind, placebo-controlled trial of bilberry extract in 14 people with diabetic retinopathy or hypertensive retinopathy (damage to the retina caused by diabetes or hypertension, respectively) found significant improvements in the treated group.