As long as it's not the low fat ones as they are full of artificial sweeteners and all sorts of nasties, I don't think it'll do any harm. I give Jacob the plum baby ones as he loves them and can manage the little pots better, oh I also give him the fromage frais rather than yogurt as it's not so runny as he has this habit of turning the spoon over on the way to his mouth while it's fully loaded lol