Plain yogurt — Food safety facts
Safe to share · Dogs · 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, a small spoonful of plain, unsweetened yogurt with live cultures is safe for dogs. It can be a nice probiotic treat. The critical thing is to check the label and avoid any yogurt containing xylitol or other artificial sweeteners, as those are dangerous. Start with a tiny amount to see how your dog's stomach handles it.