Yams are safe for dogs
Yams are not toxic to dogs. They are high in vitamins B6 and C, and potassium. Yams needs to be cooked before giving it to your dog. Prepare it plain without any additional seasonings or ingredients. Making a mash is a good option. There can be some toxic compounds in the immature tuber tissue of white or yellow yams which are destroyed by cooking. Give yams in moderation or they can cause diarrhea because of their fiber content.