Adult dogs can eat one meal a day, but underage dogs still need to grow, so it is recommended to eat two or three meals a day. Since the adult dog's body has grown, if the owner wants to maintain its current shape and weight, it can be fed once a day; if the owner wants the dog to gain weight, it is recommended to feed it at least twice a day. , or eat smaller meals more frequently every day. In addition, older dogs need their owners to supplement their nutrition, and it is not recommended to feed them one meal a day.