Every batch is tested by HPLC for identity and purity
JAMA Netw Open 3(6):e207419 Beavers KM, Greene KA, Yu EW (2020) Management of endocrine disease: bone complications of bariatric surgery: updates on sleeve gastrectomy, fractures, and interventions
Source: DailyMed (Rybelsus), DailyMed (Ozempic) Drugs that may interact with Rybelsus and Ozempic Rybelsus and Ozempic can interact with similar medications
TL;DR There is no single answer
Your body actually produces it within your own cells, primarily in the liver
Liz McMahon, MPH, an IBS and gut health registered dietitian, primarily recommends capsules, explaining, "probiotics may not do much if they can't make it past your stomach acid, so ensuring that the product is encapsulated is important." Probiotic capsules can be single- or multistrain, and some are designed to be taken on an empty stomach