I started our 2 year old GSD mix on Gut Restore and S Boullardi/FOS powder after dealing with off and on bouts of diarrhea since he was a puppy. After many vet visits and trying other probiotics, nothing helped and this was the next step. It was a slow start but after two rounds of the Gut Restore combined with the S Boullardi powder, we have been getting pretty consistently solid stool with no issues for the last few months. Nothing else worked for our boy, and because he’s stabilized, we’ve been able to place him on a daily maintenance dose of s Boullardi, along with now hydrolyzed protein food. That combo has kept him having solid stool for a while now so we just started the subscription! Everyone has been so helpful in recommending when adjustments may be needed, thank you so much Animal Biome!