Effect of a Probiotic or Postbiotic on Gut Microbiome During Antibiotic Treatment

Inclusion Criteria: Participants meeting ALL of the following criteria will be recruited for the study: * Males and females aged ≥18 to ≤ 65 years; if female, either not of childbearing potential or using a medically approved method of birth control and willing to take a pregnancy test at screening. * Body mass index (BMI) 18.5-29.9 kg/m². * Healthy as determined by medical history and physical examination. * Agreed not to change current dietary habits during the course of the study. * Able to attend study visits, comply with study requirements (consumption of study medications, especially biological sample collection procedures, and study visit schedule) and provide reliable and complete data regarding AEs/SAEs and PROs. * Have been informed and have given written consent for the use of their data in accordance with local regulations before study inclusion. Exclusion Criteria: Participants meeting ANY of the following criteria will be excluded from the study: * Women who are pregnant, breastfeeding, or planning to become pregnant during the course of the study. * People on vegetarian or vegan diet; People on special diet (e.g. Ducan, Keto, etc.) * BMI ≥ 30 kg/m² or \<18.5 kg/m². * History of intake of antibiotics, other probiotics, postbiotics, prebiotics, synbiotics, proton pump inhibitors, acid sequestrants (cholestyramine, Bile colestipol), within six months prior to the screening day. * Participation in other clinical trials in the last 90 days prior to screening. *…