The number of times a day a dog should eat depends on several factors, including their age, size, breed, health, and individual metabolism. For puppies up to 6 months old, it is recommended to feed them three to four meals a day. Puppies have small stomachs and high energy needs, which necessitate more frequent feeding. From 6 months until their 1st birthday, puppies typically transition to eating two meals a day. Adult dogs should ideally be fed one or two meals each day, spaced approximately 12 hours apart.