Daily Probiotic for Cats from Pet Naturals is the right combination of prebiotics and probiotics to support digestive regularity, less gas and bloating while supporting superior immune health. This daily probiotic contains 100 million CFU's of highly stable Bacillus coagulans and 200 mg of FOS fiber - all delivered in a tasty duck-flavored chew. Daily Probiotic is a great addition to a daily health regimen but can also be helpful in times of stress, like illness, boarding or travel. All Pet Natural's of Vermont products are veterinarian formulated and NASC approved.