Our Top Picks
Best Overall: Purina Pro Plan FortiFlora Cat Supplement at Amazon
"Cats love the savory flavor of this probiotic powder, so you won't have to worry about your cat turning up their nose at it."
Best for IBD: Nexabiotic Probiotic for Cats & Dogs at Amazon
"This supplement contains 23 different probiotics formulated to help treat symptoms like diarrhea and constipation."
Best Powder: Tomlyn Water Soluble Cat Supplement at Amazon
"Have a picky eater? This odorless, flavorless powder can be sprinkled in your cat's food or water without them even knowing."
Best Pill: VetriScience Vetri-Mega Probiotic Capsules at Amazon
"Suitable for both dogs and cats, this is a great pick for households with multiple pets."
Best Liquid: The Honest Kitchen Instant Goat's Milk at Amazon
"Made from goat milk, this probiotic can be served mixed in with your cat's food or as a separate drink—whichever your cat prefers."
Best Treat: Drs. Foster and Smith Probiotic Soft Chews at Amazon
"If adding probiotics to your cat's food won't work, consider this treat supplement. They'll be begging you for it in no time."
Best Gel: PetAg Bene-Bac Gel Supplement at Amazon
"If you can't trust your cat to finish their food completely, you can administer this gel directly into their mouth instead."
Best Digestive Enzymes: NaturVet Digestive Enzymes at Amazon
"Boosted with digestive enzymes to further soothe upset stomachs, this pick is suitable for cats as young as 6 weeks."
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