Yes, dogs can eat blueberries! Blueberries, which are available year round either fresh, frozen or freeze dried, are a great treat for your dog. The deep blue color comes from anthocyanidins, which are potent antioxidants, and the berries also supply Vitamin C, Vitamin K, Vitamin E, phytochemicals, manganese and fiber.
Phytochemicals are chemical compounds produced by plants including both fruits and vegetables. Some phytochemicals are thought to help protect against some cancers.
via Whisker Therapy