Developed in 1949, the olallieberry has the initial appearance of an elongated blackberry, not to mention that it balances the sweet and tart flavors of blackberry jam and plum with a tender and juicy consistency. Besides, these berries are a good source of vitamins A, iron, calcium, potassium, phosphorous, magnesium and dietary fiber. They also contain high amount of Vitamin C, minerals, and phytoestrogen, which will fight against any pathogens and protect your body from various kinds of disease.