Professional reviews on the Shape and About.com websites of GoodBelly probiotics are generally positive, with both reviewers noting that the GoodBelly probiotic juices taste good, are suitable for those on restrictive diets as the products are vegan and dairy- and soy-free, and are a simple addition to a daily routine. GoodBelly products use a high-performing strain of probiotic, called Lp299v, because it effectively makes its way into and colonizes the intestines, states About.com.
Most GoodBelly probiotic products contain 20 billion colony-forming units, while the GoodBelly BigShot50 contains 50 billion units, according to About.com. At these levels, manufacturers suggest a serving a day yields results in about 12 days of use. After taking the 12-day GoodBelly probiotic challenge, the reviewer on Shape says that she began having less gas and more solid bowel movements than she normally has. She points out that at the beginning of the challenge, she experienced some bloating, cramping and mild diarrhea, but she was not sure if the probiotics were responsible.
The reviews positively remark on the variety of great-tasting flavors available and that both enjoyed drinking the juices. As there are no known negatives to using probiotics as of 2016, the GoodBelly products provide a good alternative to those with difficulties taking pills, notes Shape. Further, the American College of Gastroenterology recommends regular usage of probiotics in the treatment of irritable bowel syndrome, states About.com.