Inclusion Criteria:  Healthy male and female adult participants who are 18 to 65 years of age (inclusive). In good general health and good oral health (no active or uncontrolled diseases or conditions). On average more than 3.0 but less than 6.0 complete spontaneous bowel movements ("CSBM"; occurred without use of laxatives/suppositories/enema on the day of bowel movements or the day before, with a sense of complete evacuation) per week over the 4 weeks prior to screening and during the run-in period. Have a body mass index (BMI) between 18.5 to 34.9 kg/m2 (inclusive). Have normal (or acceptable to the investigator) vital signs (blood pressure and heart rate) at screening (Visit 1) and baseline (Visit 2) and normal (or acceptable to the investigator) physical exam findings (if applicable) at screening.  Females of reproductive potential must agree to practice a medically acceptable form of birth control for a defined timeframe prior to the start of run-in and throughout the study to avoid pregnancy, including:  use for at least 3 months prior to run-in: hormonal contraceptives including oral contraceptives, hormone birth control patch (e.g., Ortho Evra), vaginal contraceptive ring (e.g., NuvaRing), injectable contraceptives (e.g., Depo-Provera, Lunelle), or hormone implant (e.g., Norplant System); or use for at least 1 month prior to run-in: double-barrier method (e.g., condom with diaphragm or condom with cervical cap), intrauterine devices, or complete abstinence from heterosexual intercourse; or vasectomy of partner at least 6 months prior to run-in. Males of reproductive potential must agree to avoid pregnancy by using the double-barrier method mentioned above or complete abstinence from heterosexual intercourse throughout the study. Agree to refrain from treatments in the defined timeframes as outlined in the protocol. Agree not to change current dietary habits (with the exception of avoiding pro- and prebiotic supplements), smoking and alcohol consumption habits, and activity/training levels starting from the beginning of the run-in period and for the duration of the study. Agree to avoid anal intercourse for 72 hours prior to fecal sample collection. Agree to not receive a vaccine for COVID-19 throughout the duration of the study. Have access to and able to use an electronic device with internet access (e.g., smart phone, tablet, laptop, etc.). Willing and able to agree to the requirements and restrictions of this study, be willing to give voluntary consent, be able to understand and read the questionnaires, and carry out all study-related procedures.  Exclusion Criteria:  Participants who are lactating, pregnant or planning to become pregnant during the study. Have a known sensitivity, intolerability, or allergy to any of the study products or their excipients, or any of the rescue medications. Received a vaccine for COVID-19 in the last 2 weeks prior to screening, current COVID-19 infections, or COVID-19 long haulers (those who were first infected with COVID-19 ≥28 days prior to screening and continue to have symptoms). Current diagnosis or history of irritable bowel syndrome (IBS), inflammatory bowel disease (IBD, including ulcerative colitis and Crohn's disease), functional constipation or diarrhea (defined by the Rome IV diagnostic criteria), celiac disease, lactose intolerance and/or malabsorption, gastroparesis, gastroenteritis, endometriosis, diverticulosis, gastric or duodenal ulcers, pancreatitis, or eating disorder; history of intestinal surgery (excluding appendectomy or herniorrhaphy), or history of bariatric surgery. Use of concomitant treatments within the defined timeframes as outlined in the protocol. Change of dietary habits (e.g., starting a FODMAP diet, ketogenic diet, etc.) within the 4 weeks prior to the beginning of the run-in period. Having a history of heart disease, uncontrolled high blood pressure (≥140 systolic or ≥90 diastolic mmHg), renal or hepatic impairment/disease, uncontrolled diabetes (Type I or Type II), bipolar disorder, hepatic or renal dysfunction, unstable thyroid disease, immune disorders and/or immunocompromised (e.g. HIV/AIDS), a history of cancer (except localized skin cancer without metastases or in situ cervical cancer within 5 years prior to screening visit), or a history of any clinically significant disease or disorder which, in the opinion of the investigator, may either put the potential subject at risk because of participation in the study, or influence the results or the potential participant's ability to participate in the study. Major surgery in 3 months prior to screening or planned major surgery during the course of the study. History of alcohol or substance abuse, as deemed by the investigator, in the 12 months prior to screening. Receipt or use of test product(s) in another research study within 30 days prior to run-in or longer if the previous test product is deemed by the investigator to have lasting effects that might influence the eligibility criteria or outcomes of current study. Any other active or unstable medical conditions or use of medications/supplements/ therapies that, in the opinion of the investigator, may adversely affect the participant's ability to complete the study or its measures or pose a significant risk to the participant.