There is no specific required amount of carbohydrates for dogs. AAFCO does not have a requirement for carbohydrates due to traditional preparations of commercial diets.
Commercial dog foods contain enough carbohydrates to meet the daily amount of glucose that is needed. Glucose is needed to maintain the nervous system and keep it functioning normally.
Dry dog foods typically contain 30-60% carbohydrates, with the majority being starch. Grains such as corn, rice, wheat, barley, and oats provide the bulk of starch and are well tolerated and absorbed in dogs due to commercial preparations. It’s important to note that a diet without any added carbohydrates will be higher in proteins and fats.