Sometimes — with care
Plain, unsweetened yogurt is fine for most dogs in small amounts and can be a handy probiotic treat — but check it is xylitol-free and remember many dogs are lactose-sensitive.
Plain natural or Greek yogurt contains calcium, protein and live cultures that may support gut health, and its creamy texture makes it great for hiding pills or freezing into treats. Two cautions: first, dairy — adult dogs vary in how well they handle lactose, and some get loose stools; thick Greek yogurt is lower in lactose. Second and more serious, never feed flavoured or “light” yogurts sweetened with xylitol, which is highly toxic to dogs. Always read the label.
A spoonful of plain yogurt for a small dog, a couple of tablespoons for a large dog, a few times a week. Choose full-fat plain or Greek with no added sugar or sweeteners. Skip it entirely if your dog gets diarrhoea from dairy.
A little plain peanut butter (xylitol-free) or mashed banana works on a lick mat too.
General information, not veterinary advice. If your pet has eaten something potentially harmful or shows symptoms, contact your vet or an emergency clinic immediately. Full disclaimer.