Recent testing has confirmed that Oregon black raspberries have astonishingly high antioxidant levels. Antioxidant levels, shown in terms of their oxygen radical absorption capacity (ORAC), are a measure of a substance's ability to absorb oxygen free radicals. Oxygen free radicals can damage DNA, cause cellular change, oxidize LDL cholesterol, and cause premature mental aging. Consuming foods high in antioxidants helps prevent cancer, heart disease, stroke, and possibly Alzheimer's Disease. When compared to other foods, black raspberries have extremely high ORAC values. They are also among the highest foods in anthocyanins. Anthocyanins give foods like black raspberries their deep, dark color and have been shown to have anti-inflammatory and vasoprotective properties. Research has linked anthocyanins with improved vision, cardiovascular health, memory retention in old age and reduced risk of hypertension.
source: http://berryhealth.fst.oregonstate.edu/health_healing/fact_sheets/black_raspberry_facts.htm
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