Blood oranges are a variety of sweet orange (Citrus × sinensis) distinguished by their deep crimson to burgundy flesh, which comes from anthocyanins—the same pigments found in blueberries, cherries, and blackberries. Their flavor is sweet and complex, with subtle berry notes balanced by bright citrus acidity. Blood oranges are particularly rich in vitamin C and also provide fiber, folate, potassium, and citrus flavonoids. Unlike most orange varieties, they contain anthocyanins, giving them a distinctive mixture of phytochemicals that support antioxidant defenses, vascular function, and overall cellular health.