mulberry is a berry that comes from a tree called Morus Alba. We usually think that mulberries are red, but there are white, black, and blue versions of them too. Mulberries are full of nutrients and vitamins. A cup of raw mulberries contains only 60 calories, making them a light and tasty snack, yet providing the nutrients necessary for the body. Mulberries are rich in Vitamin K and C. Vitamin C increases tissue strength and boosts collagen synthesis.