Proper nutrition is key when it comes to your dog’s well-being and behavior. It’s recommended that you consult with your vet as to what’s the best diet to follow from when they’re puppies and when they’re adults. All in all, they need food with all of the essential nutrients. Goldendoodle puppies eat, on average, 2 – 4 times a day. Their food should consist of as little as ⅔ cups, and up to as much as 4 cups of food a day.