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My dog ate coffee-soaked biscuits. Will she get diabetes or go blind?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Female | spayed | 1 year and 6 months old | 12 lbs

My 18 month old Cavalier loves to eat my biscuits that I dunk in my coffee. I've been told it can cause diabetes and blindness. Is this true as I don't want this to happen to my companion. I am worried

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on September 1st, 2017

I certainly understand Lily's fondness for bisuits and coffee. The short answer to your question is that I would not worry about her having a small amount of biscuit dunked in coffee. While we do see diabetes in dogs (which can be associated with blindness), the biggest risk factor for diabetes in dogs is being overweight. So just be sure to limit her calories and keep her a normal weight which I presume she currently is at 12 pounds. I would be careful with her with coffee. Certainly a bit of biscuit dunked in coffee is going to have very little coffee in it, but dogs are very sensitive to coffee and can have toxity to larger amounts, so I would be careful to keep your coffee cup away from her in case she develops a liking to that as well. As with most things in life, it is all amount moderation. Please let me know if that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

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