Yes, dogs can eat a small piece of plain bread occasionally, but be mindful that some bread varieties are harmful to dogs; these varieties are made with potentially toxic ingredients, such as chocolate, nutmeg, and xylitol. In addition, bread may trigger allergies in some dogs.
Benefits
Bread is a source of carbohydrates for a quick boost of sustained energy.
Bread is also a source of B vitamins and minerals such as calcium, potassium, magnesium, and iron.
Risks
Some types of bread contain harmful ingredients for dogs, such as chocolate, raisins, nutmeg, onions, and garlic.
Bread dough is a food hazard for dogs as the yeast in the dough releases toxic levels of ethanol into the bloodstream. Bread dough can also cause stomach distension because of the yeast.
Servings
Although sharing a small piece of plain brown or white bread with your dog once in a while should not cause any health concerns, bread is not recommended as part of a dog's regular diet.
Avoid giving bread to dogs with wheat or grain intolerance.