Plain yogurt — Food safety facts
Safe to share · Cats · full breakdown on the linked food page
Plain, unsweetened yogurt with live cultures is safe in small amounts. Avoid anything with xylitol or artificial sweeteners.
Short answer
Yes, plain unsweetened yogurt with live cultures is safe for cats in small amounts. The main risk is added sweeteners—avoid anything with xylitol or artificial sweeteners. If your cat eats a small bite, just watch for mild stomach upset like vomiting or diarrhea. If they eat a large amount or the yogurt contains any risky ingredients, call your vet or the ASPCA Poison Control line at 888-426-4435.