Yes, dogs can eat cereal, but it should not be a regular part of their diets. Most cereals are high in sugar, which can be detrimental to a dog's health. In addition, brands containing dangerous ingredients such as chocolate and raisins should be off-limits to dogs since they can cause poisoning.
Risks
Some cereals may contain potentially toxic ingredients to dogs, such as chocolate, raisins, artificial flavorings, additives, and preservatives.
Cereals with high fiber content may be difficult for dogs to digest.
Servings
Cereals that are generally safe for dogs to eat include plain Bran Flakes, Oat Bran, cornflakes, Cheerios, and Rice Krispies.
Avoid giving cereals with high sugar content and cereals with chocolates and raisins.
Only give plain cereal to your dog in small amounts as an occasional treat.
Avoid giving cereal with milk as many dogs are lactose intolerant.