No, Cream of Mushroom is not okay for dogs. Cream of Mushroom contains a high amount of salt and too much salt can cause sodium poisoning in dogs. Also, Cream of Mushroom uses heavy cream. Heavy cream is a dairy product and most adult dogs are lactose-intolerant. This means that most dogs do not have enough lactase enzyme to break down the sugar in heavy cream called lactose. As a result, your precious pup may vomit or have diarrhea. To make matters worse, heavy cream contains about 37% fat so it is a high-fat product. It’s best to avoid feeding your dogs high-fat food like Cream of Mushroom.