Easy and Versatile - This unflavored powder is easily added to beverages, smoothies, juices, cereals, yogurt, and recipes. Many fiber supplements mix clear because they’re mostly soluble fiber but they can slow transit time and may cause gas and bloating when taken in excess so not the best choice for sluggish bowels. Organic Vital Fiber is not a clear mixing fiber, but it’s a super versatile addition to any foods.