Native to Brazil, the Pineapple guava is slightly egg-shaped and has a thick, creamy flesh with pineapple tasting notes. In addition, this fruit contains high amounts of vitamin A and folate, as well as potassium, vitamin C and B-complex vitamins. In addition to their role in metabolism and in maintaining healthy skin and hair, B vitamins have actually been linked to a lower incidence of stroke, a condition in which a blood clot blocks blood flow to the brain, or a blood vessel bursts in the brain.