Effect of a Lacidofil® STRONG in Healthy Adults Taking Antibiotic Treatment

Inclusion Criteria: * Male or female aged 18 to 50 years inclusive * Body mass index 18.0 - 29.9 kg/m2 * Healthy as determined by laboratory results, medical history and physical exam * Agrees to comply with study procedures * Agrees not to change current dietary habits (with the exception of avoiding pro- and prebiotics) and activity/training levels during the course of the study * Has given voluntary, written, informed consent to participate in the study Exclusion Criteria: * Women who are pregnant, breastfeeding, or planning to become pregnant during the course of the trial * Body mass index ≥ 30 kg/m2 * Average number of formed bowel movements \> 3 per day or \< 3 per week * Participation in a clinical research trial within 30 days prior to randomization * Use of antibiotics within 60 days prior to randomization. * Habitual use of pro- and/or prebiotic products. Subjects must not consume foods or supplements containing added pro- and/or prebiotics within 3 weeks prior to randomization and during the course of the study * Use of laxatives, enemas or suppositories 1 week prior to randomization and for the duration of the study * Follows a vegetarian or vegan diet * Unstable medical conditions, as determined by the Qualified Investigator * History of chronic gastrointestinal disorders including irritable bowel syndrome; chronic constipation; chronic diarrhea; dyspepsia; gastroesophageal reflux disease; diverticulitis; colitis; Crohn's disease; or any other malabsorption or gastrointestinal disorder * Subjects with an immuno-compromised condition (e.g. AIDS, lymphoma, patients undergoing long-term corticosteroid treatment) * Alcohol use \> 2 standard alcoholic drinks per day and/or alcohol or drug abuse within past year * Allergy or sensitivity to test product ingredients or Amoxicillin/Clavulanic Acid * Individuals who are cognitively impaired and/or who are unable to give informed consent * Any other condition which in the Investigator's opinion may adversely affect the subject's ability to complete the study or its measures or which may pose significant risk to the subject