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Best food for 5-month puppy with diarrhea and sensitive stomach?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 5 months and 5 days old | 23 lbs

Hi, what is the best puppy food for my 5-month-old puppy? He seems to have a sensitive stomach. Had mild diarrhea almost constantly with Diamond puppy food and then we switched to Taste of the Wild he vomited and horrible diarrhea. We went to chicken and rice, was great with firm poops, now we are transitioning to Wellness puppy chicken, and diarrhea is starting again.

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1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on April 4th, 2018

Thank you for submitting your question regarding Giacomo. I'm sorry to hear you are having all of these problems with him. About 75% of the time ongoing diarrhea in puppies is related to intestinal parasites or diet. So have your veterinarian ensure he does not have any parasites including giardia. If he is negative and has been properly dewormed, I should start him on a prescription low fat diet that is highly digestible. I use Purina ProPlan Veterinary Diets EN as it is safe for use in growing puppies. If this diet does not resolve the diarrhea, he may require a diet for a food allergy such as a hydrolyzed formula. I hope this information helps!

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