No. Dogs should not eat blueberry muffins. The ingredients used in making store-bought blueberry muffins, like artificial flavoring and sugar, are unhealthy for dogs. In addition, some blueberry muffins also contain dangerous ingredients for dogs, such as chocolate.
Risks
Store-bought blueberry muffins contain butter, refined sugar, oil, milk, and artificial flavorings, which are unhealthy for dogs. Excessive consumption can cause many health issues such as stomach upset and pancreatitis.
Some blueberry muffins contain ingredients that are toxic to dogs, such as chocolate and xylitol.
Servings
Blueberry muffins are not recommended for dogs, as they hardly provide any health benefits and might adversely affect a dog's health.