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.
Dogs and cats carry the same rating (Safe to share), so the notes below hold for either pet.
Plain yogurt is not toxic to cats. The real limit is calories, fat and salt, so treat it as a small extra alongside the normal ration rather than a meal in itself.
There is no poisoning risk here, and the usual problem is simply eating too much at once: a heavy fat or salt load can bring on loose stools or a single vomit. Offer water, keep an eye on the pet for 24 hours, and do not induce vomiting.
Why these cautions matter
Even a gram or two of xylitol can trigger a sharp drop in a dog's blood sugar, and larger exposures go on to damage the liver.
Added sugar brings empty calories, and over months that means weight gain and dental disease — both far harder to undo than to avoid.
Plain yogurt can stay on the rotation, but only as an extra mouthful: keep the rest of the day's food unchanged and watch the litter box and how quickly they finish the next meal.
The full verdict, portion guidance and serving notes are collected on the Plain yogurt food facts page.