Dogs can safely eat plain, cooked oatmeal in moderation. It is a good source of fiber, vitamins, and minerals that can benefit their digestion and skin health. However, oatmeal should always be prepared with water, not milk, and should never contain harmful additives like sugar, artificial sweeteners (especially xylitol), chocolate, raisins, or salt. Feeding too much oatmeal can cause digestive upset like diarrhea or vomiting, so it’s best to give only a small amount relative to the dog's size, such as about one tablespoon of cooked oatmeal per 20 pounds of body weight, up to a couple of times a week. Key points for feeding oatmeal to dogs:

• Use plain, cooked oatmeal made with water.
• Avoid flavored or instant oatmeal with additives.
• Start with small amounts to see how the dog tolerates it.
• Too much oatmeal can cause gastrointestinal issues.
• Consult a vet if adding oatmeal regularly, especially for dogs with health conditions.

Oatmeal can be beneficial as it contains fiber, vitamin B, omega-6 fatty acids, and antioxidants which support healthy digestion, skin, and coat condition. It is also a good alternative carbohydrate for dogs sensitive to wheat or certain grains.