Blueberry MD (Special Blend) by Ketum Superior Kratom is a potent mix of Maeng Da Kratom and Blueberry extract. It contains rich vitamins and minerals, the powerful antioxidant anthocyanin, and Mitragyna speciosa, which supports cardiovascular and bone health and helps boost energy. Blueberry extract may also help maintain healthy weight when taken in conjunction with a healthy diet and exercise.