Saccharomyces Boulardii by Seeking Health contains 5 billion beneficial organisms that may help support bowel regularity and provide relief from occasional diarrhea, while supporting a healthy digestive system, especially during times of increased stress. Saccharomyces boulardii is an acid-resistant, temperature-tolerant microorganism that is not affected by antibiotics. It may also support the body’s healthy gut barrier, intestinal microbiota, and immune system.