Why Does Your Dog’s Breath Smell Like Fish? (And How to Fix It)
You lean in to cuddle your dog…
And suddenly you’re hit with a smell that resembles a fish market on a hot summer day.
Not great.
If your dog’s breath smells like fish, you’re not alone.
It’s one of the most common (and unpleasant) issues dog owners deal with.
But what actually causes it—and more importantly, how do you fix it?
Where Does the Fishy Smell Come From?
To get rid of the smell, you first need to understand where it’s coming from.
In most cases, there are two main causes.
Culprit #1: Anal Glands (Yes, really)
Let’s start with the less pleasant one.
Dogs have two small sacs near their rear called anal glands.
When these glands become full or irritated, they can release a strong, fishy-smelling fluid.
Because dogs groom themselves by licking, that smell can easily transfer to their mouth—and eventually to you.
What to do:
If your dog is scooting on the floor or frequently licking their rear, it’s best to visit your vet to have the glands checked and, if needed, expressed.
Culprit #2: The Real Cause – Periodontal Disease
If your vet rules out anal gland issues, the smell is almost always coming from the mouth.
When plaque and tartar build up along the gumline, they create the perfect environment for harmful bacteria.
These bacteria feed on leftover food particles and release sulfur compounds as a byproduct.
To us, that smell is unmistakable:
fishy, rotten, or even sewage-like.
If left untreated, this doesn’t just cause bad breath—it can lead to tooth loss, infections, and long-term health problems.
Why Brushing Isn’t Always Enough
Many dog owners try to solve the problem by brushing their dog’s teeth.
While that helps, it only cleans the surface—mainly the front teeth.
The bacteria responsible for that strong odor often live deeper:
- In the back of the mouth
- Along the gumline
- Under hardened tartar
Places a toothbrush simply can’t reach effectively.
A More Effective Approach: Supporting Oral Health From Within
To truly eliminate fishy breath, you need to change the environment inside your dog’s mouth.
That’s why enzymatic dental powders have become increasingly popular.
Instead of brushing, you simply add a daily serving to your dog’s food—making it easy to stay consistent.
How it works:
Brown Algae (Ascophyllum nodosum)
This natural seaweed is absorbed into the bloodstream and released through saliva, helping soften tartar where bacteria hide.
Probiotics
Bad breath can also be linked to gut health. Beneficial bacteria help rebalance the microbiome and reduce odor-causing bacteria.
Green Tea Extract
Known for its antioxidant properties, it helps soothe gums and supports fresher breath.
Say Goodbye to the “Fishy” Smell
You don’t have to hold your breath every time your dog gets close.
By targeting the bacteria at the source, you can support healthier gums, reduce tartar buildup, and eliminate unpleasant odors over time.
With consistent daily use, many dog owners notice improvements in just a few weeks—
including fresher breath and a happier, more comfortable dog.
