Wild blueberry (Vaccinium angustifolium) is a small berry with a deep blue color and intense flavor, different from the larger cultivated blueberries found in most produce aisles. People use it fresh, frozen, or in concentrated powders and extracts. The berries contain dense amounts of anthocyanins and other polyphenols that act as antioxidants.
People reach for wild blueberry supplements mostly to support focus, memory, and cardiovascular health. Some also take it for general immune function and blood sugar management, though evidence for those uses is thinner.
Most users stir a daily powder into smoothies, yogurt, or water. Capsules are another common option. The active compounds are water-soluble, so you do not need to take them with food or fat. The supplement is gentle on the stomach and fits into any time of day.
Wild blueberries naturally contain vitamin K. If you take blood thinners like warfarin, typical supplement doses carry a low risk, but check with your doctor if you are concerned. Pregnant or nursing women should speak with a professional before using concentrated forms.