In Blister Packaging Sugar Free! (With Xylitol) Clinically Documented Strains For Kids and Adults For Intestinal and Immune Health Probiotic Supplement 1 Billion Per Serving 4 Strains Gluten Free Non-GMO Suitable for Vegetarians/Vegans Sugar Free No Artificial Sweetener, Flavor or Color. Strains Matter Jarrow Formula Probiotics Contain Clinically Documented Strains. Jarrow Formulas Yum-Yum Dophilus provides 4 clinically documented strains of potent beneficial bacteria in a yummy chewable tablet. Beneficial intestinal flora can be negatively affected or reduced by a diet that is low in fiber, high in animal protein, the use of medication, travel and stress, etc. The result is the dysbiosis (i.e, disruption of the normal intestinal microflora), which can negatively affect gastrointestinal function and well being. The friendly bacteria in Yum-Yum Dophilus help maintain a balanced intestinal microflora, support immune function and promote health. Xylitol is used to enhance the taste and support dental health. Each tablet is individually blister packed for enhanced stability and convenience.