Ingredient file // Vitamin or mineral
Sodium Chloride
Useful mineral salt, a poor health signal
Sodium chloride is common salt added in a measured amount to supply sodium and chloride. Dogs need both minerals, but seeing salt on a bag tells you little about the food's total sodium or whether it suits a dog with heart disease.
- What it is
- Common salt added to dog food as a concentrated source of the minerals sodium and chloride.
- Made from
- Mined salt or evaporated brine
- Main job
- Supplies sodium and chloride
- Typical amount
- About 0.25 to 0.50% added, according to an industry formulator
- Watch for
- Total sodium in dogs with heart disease
- Not the same as
- Total dietary sodium
Our read // In our catalog
In 1 of every 200 foods we track
Share of foods that list it
1%
13 of the 2,595 foods with an ingredient list on file, from 3 brands. All dry dog food.
Each square is 1% of the catalog
Where it sits on the label
Median position 14. In the top five of 0 foods, so it is usually a minor ingredient.
Above the salt
Usually listed after the salt, which caps it at roughly 1% of the recipe in 100% of foods.
Price per lb
Median of the cheapest bag price across 12 priced foods, 21% above the catalog. The price is the food's, not the ingredient's.
Who leans on it
62%
of the foods that list it are from Go! Solutions. 3 brands use it in total.
What it is
How it is made
Commercial salt comes from underground deposits or from brine whose water is evaporated. Producers prepare dry crystals that pet food makers can weigh into a recipe to meet sodium and chloride targets.5,6,8
- 01 // Source Salt or brine Producers start with underground rock salt, underground brine, or seawater.
- 02 // Process Mined or evaporated Rock salt is mined; water is evaporated from brine until salt crystals form.
- 03 // Process Crystals prepared The crystals are prepared for handling, and some commercial grades contain flow agents.
- 04 // Output Dry salt White crystals arrive at the food plant ready to be weighed into a recipe.
What is in it
Composition, dry matter
39.34
% sodium
Sodium's share of pure sodium chloride. The rest is chloride, so salt's weight on a label is not the food's sodium level.
Why it is in the bag
What the manufacturer gets
-
01
Meets mineral targets
Salt supplies both minerals in a form formulators can measure. AAFCO's adult maintenance profile sets separate minimums for sodium and chloride in the complete food.4,6
-
02
Keeps formulation inexpensive
Salt is widely produced and, according to a pet food industry formulator, is a low-cost way to add sodium and chloride.6,8
How much An industry formulator reports that pet food recipes commonly add about 0.25 to 0.50% salt; other ingredients also contribute sodium.6
Our read // The claims
What the evidence supports
Strong: controlled studies in dogs agree. Some: small or mixed dog data. Thin: mechanism or lab work only. None: nothing, or the evidence points the other way.
-
Vets say
Dogs need sodium and chloride in their food
Evidence
- Strong
- Some
- Thin
- None
AAFCO sets dry-matter minimums of 0.08% sodium and 0.12% chloride for adult maintenance. Salt supplies both, but the requirement applies to the complete diet, not to a required amount of added salt.4,6
-
Vets say
Less salt improves heart failure in dogs
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
In a 14-dog crossover trial, a low-sodium diet reduced some measures of heart size compared with a moderate-sodium diet. The trial did not show longer survival, so lower sodium is not automatically better for every heart patient.2
-
Owners say
Salt in kibble causes high blood pressure
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
In a short study of 5 healthy dogs with free water, higher salt increased drinking but did not raise blood pressure across the group; 1 dog did respond. A kidney-disease model also failed to support a simple more-salt, more-pressure rule.1,3
-
Brands say
Salt makes dry kibble taste better
Outruns the evidence
Evidence
- Strong
- Some
- Thin
- None
An industry formulator describes a taste benefit up to 0.50% of a recipe. A clinical nutrition text reports that increasing salt did not improve dry-food preference in standard dog tests, though moist food differed.6,7
Straight answers
What owners ask
-
Q01
Is it just filler?
NoSodium and chloride are required minerals, and salt supplies both. The useful amount is small, which is why the line usually belongs near other mineral ingredients.4,6
-
Q02
Does this mean table salt?
YesSodium chloride is the main substance in table salt. Food-grade salt may have flow agents, and iodized salt has added iodine, but the sodium chloride itself serves the same mineral purpose.5
-
Q03
Can I judge sodium from its position?
NoIngredients are ordered by weight, and the list does not give their amounts. Other ingredients contribute sodium too. Ask the manufacturer for the finished food's measured sodium per calorie when that number matters.6,10
-
Q04
What if my dog has heart failure?
Check the amountUse the food's measured total sodium, including treats, with your dog's treatment plan. A small heart-failure trial found changes in heart size on a lower-sodium diet but did not test survival.2
Who uses it
Brands, best sellers and the company it keeps
Top brands, by foods that list it
Usually listed with, share of the foods that list it
- Peas 69%
- Flaxseed 46%
- Canola Oil 46%
- Apples 46%
- Potatoes 46%
- Tapioca 46%
- Chicken Fat 38%
- Lentils 38%
- Chicken Meal 31%
- Salmon Meal 31%
- Pea Flour 31%
- Turkey Meal 23%
Our read // On the bag
Read the salt line, then check sodium
A salt line near the mineral ingredients is routine. Its position shows how much salt was added relative to neighboring ingredients, but not the finished food's total sodium. For a healthy dog, judge the complete diet. For a dog with heart or kidney disease, get the measured sodium amount and include treats in the count.
Sources
What we read
Checked October 1, 2026.
- 1 High Sodium Intake and Changes in Blood Pressure and Water Intake in Normal Dogs and Cats
- 2 Clinical, Echocardiographic, and Neurohormonal Effects of a Sodium-Restricted Diet in Dogs with Heart Failure
- 3 Effects of dietary sodium intake on blood pressure measurements in partially nephrectomized dogs
- 4 AAFCO Dog Food Nutrient Profiles
- 5 Sodium Chloride
- 6 Salt: is there really anything wrong with it?
- 7 Cardiovascular Disease
- 8 Mineral resource of the month: salt
- 9 Salt
- 10 Reading Labels
- 11 Sodium Chloride