The following is an excerpt from Petfinder.com’s – The Adopted Dog Bible. Most experts recommend feeding your dog twice a day — once in the morning and once in the evening — though puppies under five months of age should be fed three to four times a day, or as directed by your veterinarian.Thinkstock.retty soon your dog will learn that he needs to eat when the food is offered. Having regularly-scheduled feeding times not only establishes a routine, it also allows you to monitor your dog’s health. If he picks at his food throughout the day, you may not notice right away if he’s not eating well.