Low sodium dog food
Sodium content is one of the less prominent figures on a dog food label, but it is there, and comparing it properly means understanding what the number actually represents rather than just looking for the word "low" on the front of the bag. Here is how to read it and what genuinely lower-sodium options look like.
What sodium on the label actually tells you
Sodium is listed in the analytical constituents section of a dog food label, usually as a percentage, and it comes from a mix of the natural minerals in meat and any added salt in the recipe. A lower percentage generally means less added salt and a more naturally sourced sodium content, but the actual figure is what tells you that, not a marketing claim on the front of the pack.
There is no legally standardised threshold that makes a food officially "low sodium" the way there might be for a food product aimed at people, so comparing the actual percentage between products is more useful than trusting a front-of-pack label alone. Two foods both marketed toward lower sodium can still differ meaningfully once you check the figure.
Why some owners look for it
Some vets recommend a lower-sodium diet for dogs with specific heart or kidney conditions, as part of a wider managed diet rather than sodium being adjusted in isolation. If your dog has been recommended a lower-sodium diet for a diagnosed condition, that recommendation should come with guidance on the specific level needed, since it varies by condition and severity.
For a healthy dog with no diagnosed condition, there is no established need to actively seek out a lower-sodium food — a normal, complete commercial diet is formulated with an appropriate sodium level already. Chasing a lower number without a specific reason is not harmful in most cases, but it is not solving a problem that exists either.
How to actually compare foods
Look at the sodium percentage in the analytical constituents on the back of the pack, and compare it directly between the foods you are considering, rather than relying on words like "reduced" or "low" on the front, which are not tied to a fixed legal definition.
If your dog has a specific health reason for needing a lower-sodium diet, your vet may recommend a particular prescription diet formulated and tested for that condition, which is a different thing to a shelf food that simply happens to sit lower on the sodium scale. Check with your vet before choosing a diet based on sodium content alone if a diagnosed condition is the reason you are looking.
What we stock
Our dry and wet dog food range includes recipes across a spread of sodium levels, and checking the label of the specific product you are considering will tell you more than any general "low sodium" category could.
If your dog is on a vet-recommended sodium-restricted diet for a specific condition, that is worth discussing directly with your vet or their practice, since it may point to a prescription diet rather than an everyday shelf food.
Our picks, and why
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.
Forthglade Cold Pressed Natural Turkey
Cold-pressed turkey kibble for dogs from 2 months, soft enough to mix with water for young pups
£45.99
Forthglade Cold Pressed Grain Free Salmon
Cold-pressed grain-free dry food for dogs, built on fresh and dried salmon
From£16.99
Forthglade Cold Pressed Grain Free Duck
Cold-pressed grain-free duck food with fruit and botanicals, in two bag sizes
From£16.99
Forthglade Cold Pressed Grain Free Chicken
Cold-pressed grain-free chicken food with fruit and botanicals, in three bag sizes
From£16.99
Forthglade Complete Meal Lightly Baked Turkey
A lightly baked complete dry food, 50% turkey, for adult dogs of any breed
From£12.49
Forthglade Complete Meal Lightly Baked Chicken
A grain-free complete dry food for adult dogs, lightly baked and built on 50% chicken
From£12.49
Forthglade Cold Pressed Small Dog Turkey
Cold-pressed grain-free dry food for small dogs and puppies, built on turkey
£16.99
Forthglade Complete Meal Lightly Baked Lamb
A lightly baked complete dry food, 50% lamb, for adult dogs of any breed
From£12.49
Forthglade Cold Pressed Grain Free Turkey
Grain-free cold-pressed turkey kibble for dogs, gentle on sensitive stomachs
£69.69
Forthglade British Classics Chicken Family Lunch
Complete Forthglade wet dog food with 75% chicken in a 395G tray
£2.45
Harringtons Puppy Turkey & Rice
Complete turkey puppy food with 30% protein and feeding bands by adult weight
£6.49
Harringtons Adult Dog Turkey Veg
Complete dry food for adult dogs with turkey, chicken and salmon oil, 21% protein
From£3.39
Common questions
- What is a normal sodium level in dog food?
- There is no single official figure, since sodium levels vary between recipes and brands and are influenced by both natural mineral content and any added salt. Comparing the percentage on the analytical constituents between the specific foods you are considering is more useful than looking for a universal "normal" number.
- Does my dog need a low sodium diet?
- Not unless a vet has recommended one for a specific diagnosed condition, most commonly certain heart or kidney conditions. A healthy dog with no such diagnosis does not generally need to seek out a lower-sodium food specifically, since a normal complete diet already contains an appropriate level.
- Is a low sodium diet the same as a low salt diet?
- Broadly yes — salt is sodium chloride, so a lower sodium content usually reflects less added salt in the recipe, alongside the sodium naturally present in the meat and other ingredients. The sodium figure on the label is what to check rather than assuming from the ingredients list alone.
- Can too much sodium harm a healthy dog?
- A normal, complete commercial diet is formulated with an appropriate sodium level for a healthy dog, so this is not something to worry about with everyday feeding. Sodium becomes a genuine concern mainly for dogs with specific diagnosed conditions, where your vet would advise on the right level directly.
Related
Sources
Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.