Iv been using EAC for the past 2 years for my senior japenese spitz he was diagnosed with IBD and was bleeding from the bottom. I tried many different of pro biotics and did alot research. I thought id try this brand and haven't looked back since. The pre and probiotic blend from EAC combined with vitamin B complex my boy hasnt had a flare up in over a year and a half. Been a life changer for myself and my dog. I also use in-fusion ha and in-fusion msm which helped him recover from tplo surgery and his good leg is stronger less clicking by starting these products. I feed my dog the tummy stuff in morning feed and joint supplement in afternoon feed. Hope this helps anyone. Thankyou