I didn't really know anything about pistachios . . . I tried them once or twice but it was from one of those little plastic packages that claimed they were pistachios. I wasn't impressed. But when I heard that pistachios are a good pre biotic source, I thought I'd give them a try - after all, every single nut that I've purchased from NUTZ for the last ten years have been phenomenal. So I gave these little green ones a try and now I'm addicted. That about sums it up.