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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed Large (61lb +) | Male | 9 months and 7 days old | 70 lbs
Hello! My puppy is 9 months old and 70 lbs. we have an older dog in the house so the puppy has ended up eating the same adult food for a several months now. I want to get him on a grain free food to help his allergies and back on puppy food so he gets better nutrition for his growth. My boyfriend says that going back to puppy food will possibly upset his stomach more than just switching adult foods. He has had a sensitive stomach so I’m worried...Is this true and do you have any advice?
2 Answers

Answered By Dr. Kristin DVM
Veterinarian
Published on December 5th, 2018
Answered By Jenny, DVM
Veterinarian
Published on June 27th, 2017
He may be too distracted playing to show an interest in his food unless confined. If you do switch his food to see if he prefers a flavor over another it is best to mix them and transition over a week In order to decrease an upset stomach.
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