13. 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 Concomitant Medications Subjects will be required to washout for 14 days after taking any food or supplements containing probiotics before they can be randomized if the investigator determines that this will not negatively affect the subject's health. Subjects requiring prescribed medications for any acute or chronic conditions will be not be allowed to participate in this trial. Subjects cannot have used antibiotics or laxatives within the 2 months prior to randomization. Birth control is allowed during the study. Subjects who are currently taking prescribed birth control must agree to maintain their current method and dosing regimen during the course of the study.