Yes, dogs can eat oatmeal. It is a great source soluble fibre, a myriad of nutrients, minerals and antioxidants. It is especially good for senior dogs as it helps with bowel irregularities. It is also a good alternative for carbohydrates and helps keep your dog’s coat shiny, and their skin healthy. However, avoid instant oatmeal as it contains a number of harmful additives and give in moderation.