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Why are my puppy's stools unformed? Is it his current dog food?

Updated On September 23rd, 2025

I have been feeing my 7 month old mini Aussie Zignature duck dry food and his stools just never seem to be formed. I don’t know if I need to add a different fiber to help slow the transit time down so it can bulk up or just change his food all together. We had his stool checked and he doesn’t have any parasites. Please help

1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on July 25th, 2018

Thank you for submitting your question regarding your puppy. Diet and parasites are the most common causes of loose stool in young puppies. If his stool is clear of any parasitic, bacterial or viral infection, then I would consider a new diet. I would consider a sensitive stomach formula such as Purina ProPlan Sensitive Skin and Stomach. Gradually transition to the new food over 5 or so days. If this does not help within 2 weeks, then you may want to consider a prescription low fat and highly digestible diet from his veterinarian. I hope this information helps!

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