BLUEBERRY AND KIWI NUTRITION FACTS: Blueberries are a good source of fiber, a good source of Vitamin C, and contain various vitamins and minerals. They have the highest antioxidant levels of all fruits and vegetables. Flavonoids appear to be the berries’ antioxidant with the most significant effect. Kiwis are remarkably high in vitamin C, an effective antioxidant in the body, protecting cells against oxidative destruction. It’s also involved in immune function; it’s necessary for your body to make collagen and neurotransmitters. Furthermore, kiwis contain potassium, copper, vitamin K, folate, and vitamin E. Kiwis are low in calories, protein, and fat and are a good source of fiber.