You should always take your dog to the veterinarian if you have any concerns, especially if it's unusual for them to have a reduced appetite. Many dogs often only eat one meal a day, whereas, for others, this could be a new behavior indicating ill health.
Is it OK for a puppy to eat once a day?
Is it normal for dogs to eat once per day? No, it isn't. Most veterinarians recommend at least two meals per day for an adult dog and at least three meals for a puppy.
Is it cruel to feed a dog once a day?
Most veterinarians (including myself) recommend feeding adult dogs twice a day. Some people feed their dogs once a day, but dogs that are only fed once a day can get hungry and also sometimes can be prone to bilious vomiting (vomiting caused by an empty stomach).
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