Commercial probiotics can be delivered in numerous forms. The two most common delivery forms are similar to the two product formats to be tested. It has been demonstrated using in vitro testing that probiotic organisms that are unprotected from gastric exposure may not survive that exposure and therefore may not remain viable throughout the rest of the GIT. (Unpublished studies conducted at SNA research facility, February, 2010.) Similar in vitro testing of Acidophilus Pearls has demonstrated the probiotic organisms in an enteric capsule will survive gastric exposure. It is anticipated that this difference in in vitro gastric survivability will translate to improved digestive tract survivability that can be demonstrated using fecal recovery techniques.