Bilberry powder is dried, ground bilberries. It supplies anthocyanins and polyphenols, the same antioxidants found in the whole fruit. Many take it daily to help maintain circulation and night vision.
Stir one to two teaspoons into a smoothie, yogurt, oatmeal, or tea. Take it once or twice daily with a meal. Start with a low dose to gauge your tolerance. The powder gives you the full nutrition of the fruit in a form that mixes easily.
Bilberry can slow blood clotting. If you take warfarin, aspirin, or other blood thinners, avoid high doses. It may lower blood sugar, so check your levels if you use diabetes medication. Stop taking it two weeks before any scheduled surgery. Anyone pregnant, nursing, or with a medical condition should consult a professional before use.