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Ingredient file // Vitamin or mineral

Minerals

Necessary nutrients, but the label tells little

“Minerals” usually refers to a blend of mineral salts added to balance a dog food recipe. Dogs need the nutrients it supplies, but the word does not tell you which minerals are present or whether the finished food has the right amounts.

Role in the food Supporting nutrient
What it is
A blend of mineral compounds added in small amounts to help balance a dog food's mineral supply.
Made from
Manufactured mineral salts and carriers
Main job
Balances essential minerals
Typical amount
About 0.1% in one published kibble recipe
Watch for
Extra calcium for growing large breed dogs
Not the same as
Ash

Our read // In our catalog

In 1 of every 2 foods we track

Share of foods that list it

44%

1,353 of the 3,105 foods with an ingredient list on file, from 60 brands. 864 dry dog food, 423 wet dog food, 28 frozen dog food.

Each square is 1% of the catalog

Where it sits on the label

Median position 19. In the top five of 5 foods, so it is usually a minor ingredient.

Top five List position, heaviest first

Above the salt

10%

Usually listed after the salt, which caps it at roughly 1% of the recipe in 90% of foods.

Price per lb

Foods with it $3.21
All foods $3.25

Median of the cheapest bag price across 709 priced foods, about level with the catalog. The price is the food's, not the ingredient's.

Who leans on it

12%

of the foods that list it are from Purina. 60 brands use it in total.

The story

How calcium and copper research reshaped dog food minerals

Mineral premixes became routine once feeding standards set minimums. Starting in the 1970s, AAFCO nutrient profiles, built on National Research Council recommendations, required a minimum amount of copper in dog food. Gaps still turned up. A 1988 review of 13 dogs seen in 1981 and 1982 with crusting skin disease found all had eaten corn and wheat dry foods that missed NRC recommendations. Every case cleared on a balanced diet, and the condition is now known as zinc responsive dermatosis.12,16

Great Dane research shows what too much calcium does to a growing dog. A team including H.A. Hazewinkel fed puppies extra calcium until 17 weeks of age. Without matching phosphorus, the dogs developed rickets. With both minerals raised, growth slowed and lesions resembling osteochondrosis appeared, and those had only partly healed after 10 weeks on a normal diet. AAFCO's growth profile also sets a calcium to phosphorus ratio range, not just a calcium minimum.5,14

The latest turning point is copper. AAFCO's 1997 profiles required copper sulfate or chelates in premixes, forms far better absorbed than the copper oxide used before. A 2018 study of 546 stored dog livers found copper levels had climbed since the 1980s, though the authors could not prove food caused it. A February 2021 JAVMA viewpoint urged a rethink, and in March 2023 AAFCO announced its 13 member expert panel found too little data to set a copper maximum.12,13

What it is

How it is made

Premix makers combine mineral compounds because each is needed in a small amount and must spread evenly through a large food batch. This is a formulated blend, not a processing leftover.1,6,10,11

  1. 01 // Source Mineral compounds Suppliers provide compounds such as calcium carbonate, zinc sulfate and sodium selenite.
  2. 02 // Process Measured The maker weighs each compound against the mineral targets set for the finished recipe.
  3. 03 // Process Blended with carrier A carrier helps disperse tiny amounts of trace minerals throughout the dry blend.
  4. 04 // Output Mineral premix The blended powder reaches the food plant ready for one measured addition to the recipe.

What is in it

Composition, dry matter

21.6

% calcium

Calcium in one published trace mineral premix after dry matter conversion. It reflects that formula's carrier, not a standard for every premix.

Calcium 21.6%1
Zinc 88,600 mg/kg1
Iron 39,200 mg/kg1
Copper 11,300 mg/kg1
Manganese 5,880 mg/kg1
Iodine 1,590 mg/kg1
Selenium 312 mg/kg1

These figures describe one trace premix, not all products labeled “Minerals.” They were converted from its published analysis using 0.66% moisture. Mineral forms, carriers and separate additions change the mix.1,10

Benefits

What it does for your dog

Each benefit carries the same evidence grade as the claims below.

  1. 01

    Normal bone growth in puppies

    Calcium and phosphorus build the skeleton, and the ratio matters. Great Dane trials showed puppy bone mineral tracks dietary levels early on, while excess calcium disrupted bone development.4,5,14,15

    1. Strong
    2. Some
    3. Thin
    4. None
  2. 02

    Healthy skin when diets are balanced

    Zinc supports normal skin. Dogs fed dry foods that missed nutrient recommendations developed crusting skin disease that cleared on a balanced diet. The evidence is a case series, not a controlled trial.5,16

    1. Strong
    2. Some
    3. Thin
    4. None

Why it is in the bag

Tiny amount, but it supplies nutrients dogs need

  1. Main nutrition
  2. Supporting nutrient
  3. Does a job
  4. Mostly filler

A formulator adds a mineral premix when meat and plant ingredients fall short of the recipe's mineral targets, such as AAFCO's adult zinc minimum of 80 mg/kg dry matter. It usually sits low on the list because labels rank ingredients by weight and a premix is used sparingly, 0.10% in one published kibble. Low weight does not make it filler: the trace minerals are concentrated. The bare word still cannot show whether the finished food is balanced.1,5,6

  1. 01

    Fills mineral gaps

    Meat and plant ingredients contribute minerals, but a formulator adds specific compounds when the recipe needs more to meet its intended nutrient profile.5,6,11

  2. 02

    Spreads small doses

    Trace minerals are used in tiny amounts. Blending them into a premix makes it easier to distribute them evenly through a production batch.10,11

  3. 03

    Simplifies factory weighing

    One premix addition replaces separate handling of several compounds. Industry suppliers sell that approach for its simpler purchasing, storage and weighing.10,11

How much One published kibble trial used a trace mineral premix at 0.10% of the recipe, with separate calcium and phosphorus salts.1

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.

  1. Brands say

    Added minerals supply nutrients dogs need

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    The arithmetic is sound: AAFCO's adult profile sets a zinc minimum of 80 mg/kg dry matter, and a published dog recipe included a trace mineral premix. The finished food's mineral levels still matter more than the premix name.1,5

  2. Brands say

    Chelated minerals give dogs a shinier coat

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    In one 90-day trial of 43 senior dogs, groups fed amino acid complexes grew hair faster than controls. The mineral doses also differed, and most authors worked for the supplier. It does not prove a benefit from every chelated premix.3

  3. Brands say

    Soluble mineral salts are always absorbed better

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    An 8-dog trial found phosphorus digestibility of 26% with the more soluble mix versus 20% with the other mix. Calcium digestibility did not improve, and the trial measured no health benefit.2

  4. Owners say

    More calcium makes puppy bones stronger

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    A review of feeding trials found excess calcium disrupted skeletal development in some growing dogs, especially when phosphorus did not rise with it. AAFCO also specifies a calcium to phosphorus ratio for growth diets. More is not better.4,5

  5. Owners say

    Minerals on the list prove the food is complete

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    A published recipe included a 0.10% trace premix plus separate calcium and phosphorus sources. One ingredient entry cannot show the finished diet's nutrient balance. Check the nutritional adequacy statement for the dog's life stage.1,8

The research

Studies worth knowing

Published research we read for this page, dog studies first.

  1. 2018 // Lab analysis of stored livers

    Liver copper in dogs rose sharply over three decades12

    546 dogs, archived liver samples

    Found. Among breeds not known for copper disease, the share of dogs with liver copper above 300 μg/g rose from 28% in 1982 to 1988 to 49% in 2009 to 2015. Prone breeds rose from 48% to 71%.

    What it means. Copper buildup is not only a problem for at-risk breeds. If your dog has liver disease, ask your vet about copper intake.

  2. 2000 // Feeding trial, 3 diets

    Extra calcium caused rickets and slowed growth in Great Danes14

    Growing Great Dane puppies, 3 groups

    Found. Puppies fed high calcium without extra phosphorus until 17 weeks developed rickets. Those fed both minerals high grew slowly and showed osteochondrosis-like lesions that had only partly healed after 10 weeks on a normal diet.

    What it means. Feed a complete growth food as labeled and skip calcium supplements for large breed puppies. Damage from excess may not fully reverse.

  3. 2002 // Feeding trial, 3 diets

    Puppy bone mineral followed diet calcium until about 6 months15

    32 Great Dane puppies from 4 litters

    Found. Bone mineral content rose with the calcium and phosphorus in the food. Differences between diet groups grew until 6 months of age, then faded, with body composition no longer different at 12 months.

    What it means. The first 6 months are when a puppy's mineral intake shows up most directly in its bones, so food choice matters most then.

  4. 1988 // Review of case records

    Skin disease cleared in 13 dogs after a diet change16

    13 dogs fed generic dry foods

    Found. All 13 dogs had crusting skin lesions after eating corn and wheat foods that missed NRC recommendations. All recovered fully on a balanced diet. The condition is now recognized as zinc responsive dermatosis.

    What it means. A food's mineral balance shows up on the dog. Choose a food with an adequacy statement for your dog's life stage.

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No

    Mineral compounds supply nutrients a dog needs, even though the premix contributes little weight. Its job is to adjust the recipe's mineral levels, not to add bulk.5,6

  2. Q02

    Does “Minerals” name a standard mix?

    No

    Premixes are formulated for particular recipes. AAFCO's model labeling format shows “Minerals” followed by the compounds in parentheses; European labels may use “minerals” alone as a category name. The bare word does not identify a formula.7,9

  3. Q03

    Should I pay more for chelates?

    Not automatically

    A supplier-authored trial found coat differences in senior dogs, but mineral amounts differed between groups. That result cannot tell you whether a food using chelates is better for your dog than another complete food.3

  4. Q04

    How do I check the balance?

    Read adequacy

    Find the nutritional adequacy statement and match its life stage to your dog. If you need specific calcium or phosphorus figures, ask the maker for the finished food's analysis; the premix entry cannot provide them.5,8

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Purina 156
  2. Hill's 114
  3. Merrick 99
  4. NutriSource 83
  5. Instinct 77
  6. Fromm 59
  7. Zignature 46
  8. Natural Balance 44
  9. Halo 36
  10. Now Fresh 35

Plus 50 more brands.

Amazon best sellers that list it

  1. #2 Purina One SmartBlend Adult Dog Lamb & Rice Formula Dry Dog Food
  2. #3 Purina Pro Plan Adult Complete Essentials Shredded Blend Chicken & Rice Formula Dry Dog Food
  3. #4 Hill’s Science Diet ght Small & Mini Chicken Recipe Dry Dog Food
  4. #6 Hill’s Science Diet Adult Sensitive Stomach & Skin Chicken Recipe Dry Dog Food
  5. #9 Purina Pro Plan Adult Sensitive Skin & Stomach Salmon & Rice Formula Dry Dog Food
  6. #10 Iams Proactive Health MiniChunks Chicken & Whole Grains Dry Dog Food
  7. #13 Hill’s Science Diet Adult 1-6 Small Bites Chicken & Barley Recipe Dry Dog Food
  8. #15 Purina One True Instinct with a Blend of Real Turkey & Venison Dry Dog Food

Rank on Amazon's dog food best seller list, checked October 2026.

Usually listed with, share of the foods that list it

  1. Chicken 44%
  2. Natural Flavor 32%
  3. Peas 30%
  4. Chicken Fat 28%
  5. Chicken Meal 27%
  6. Brown Rice 24%
  7. Flaxseed 22%
  8. Carrots 20%
  9. Sweet Potatoes 19%
  10. Potatoes 17%
  11. Beef 17%
  12. Barley 14%

On the shelf

Foods that list it

1,353 foods in our reviews list it. Here are some of them.

Dave’s Pet Food Restricted Diet Sodium Wet Dog Food39.1% proteinEvanger’s Grain Free Braised Beef Chunks with Gravy - packed by hand! Wet Dog Food44.4% proteinEvanger’s Roasted Chicken Drummet Dinner - packed by hand! Grain-Free Wet Dog Food44.4% proteinPedigree Chopped Ground Dinner Adult Pouch, Chicken Wet Dog Food36.4% proteinPedigree High Protein Chopped Ground Dinner Can, Chicken & Duck Wet Dog Food50.0% protein
Show 60 more ZIWI Air-Dried Beef Dog Food Topper44.2% proteinZIWI Steam & Dried Lamb with Green Vegetables Recipe Dog Food Topper38.6% proteinZIWI Steam & Dried Beef with Pumpkin Recipe Dog Food Topper38.6% proteinZIWI Air-Dried Venison Dog Food Topper51.2% proteinZIWI Steam & Dried Cage-free Chicken with Orchard Fruits Recipe Dog Food Topper40.9% proteinPurina Beneful Freshly Prepared Blends Salmon Wet Dog Food50.0% proteinPurina Beneful Prepared Meals Simmered Beef Wet Dog Food45.5% proteinPurina Beneful Freshly Prepared Blends Chicken Wet Dog Food50.0% proteinNutriSource PureVita Lamb & Pumpkin Entree Dry Dog Food26.7% proteinNutriSource PureVita Puppy Turkey & Cranberry Entree Dry Dog Food30.0% proteinNutriSource PureVita Turkey & Cranberry Entree Dry Dog Food26.7% proteinNutriSource PureVita Pork & Blueberry Entree Dry Dog Food26.7% proteinNutriSource PureVita Duck & Kale Entree Dry Dog Food28.9% proteinNutriSource PureVita Salmon & Kale Entree Dry Dog Food26.7% proteinPurina Dog Chow High Protein Real Beef Dry Dog Food30.0% proteinPurina Pro Plan Senior Small Breed Shredded Blend Chicken Rice Dry Dog Food34.1% proteinPure Balance Pro+ Large Breed Chicken & Brown Rice Recipe Dry Dog Food24.4% proteinWysong Original Diets Healthy Aging Dry Dog Food44.4% proteinPure Balance Pro+ Weight Management Chicken & Oatmeal Recipe Dry Dog Food27.2% proteinPurina Dog Chow High Protein Real Chicken Dry Dog Food30.0% proteinZignature Select Cuts Trout & Salmon Meal Formula with Super Grains Dry Dog Food31.1% proteinPure Balance Pro+ Sensitive Skin & Stomach , Salmon & Rice Recipe Dry Dog Food27.8% proteinPurina Pro Plan Development Puppy Small Breed Chicken Rice Dry Dog Food37.5% proteinPure Balance Pro+ Small Breed Chicken and Pea Recipe Dry Dog Food28.9% proteinPure Balance Pro+ Senior Salmon & Brown Rice Recipe Dry Dog Food26.7% proteinSimply Nourish Limited Ingredient Diet Limited Ingredient Small Breed Adult Grain-Free Dry Dog Food30.4% proteinBixbi Rawbble Grain-Free Dry Dog Food34.1% proteinK9 Natural Baked & Coated Grass-Fed Red Recipe Grain-Free Dry Dog Food44.4% proteinHill’s Prescription Diet ONC Care Chicken & Vegetable Stew Wet Dog Food30.0% proteinTruDog Grain Free Chicken & Salmon Recipe Small Breed ca Wet Dog Food43.2% proteinPurina Beneful Prepared Meals Simmered Chicken Wet Dog Food45.5% proteinOpen Farm Surf & Turf Raw Freeze-Dried Dog Food38.9% proteinBIXBI RAWBBLE Grain-Free Wet Dog Food38.6% proteinAnnamaet Chicken Raw Freeze-Dried Dog Food38.7% proteinAnnamaet Surf & Turf Raw Freeze-Dried Dog Food43.0% proteinBixbi Liberty Dry Dog Food29.5% proteinK9 Natural Baked & Coated Cage-Free Poultry Recipe Grain-Free Dry Dog Food44.4% proteinBixbi Rawbble ProteinBlend Grain-Free Dry Dog Food30.7% proteinTruDog Elevate Homestyle Bone-In Grain Free Chicken Stew w/ Carrots & Spinach Wet Dog Food23.5% proteinTruDog Elevate Kettle Cooked Chunky Healthy Grains Chicken & Salmon Stew w/ C Wet Dog Food32.5% proteinTruDog Elevate Homestyle Bone-In Grain Free Chicken Stew w/ Sweet Potatoes Wet Dog Food23.5% proteinTruDog Elevate Smoky BBQ Stew Healthy Grains Braised Duck & Beef Stew w/ Whit Wet Dog Food36.1% proteinTruDog Elevate Smoky BBQ Stew Grain Free Shredded Chicken Stew w/ Sweet Potat Wet Dog Food36.1% proteinOpen Farm Pasture-raised Lamb Raw Freeze-Dried Dog Food38.9% proteinPurina Beneful Kitchen Creations Chicken & Veggies Wet Dog Food50.0% proteinOpen Farm Farmer’s Table Pork Raw Freeze-Dried Dog Food46.3% proteinPurina Beneful Freshly Prepared Blends Lamb Wet Dog Food50.0% proteinPurina Pro Plan Weight Management Turkey Rice Gravy Wet Dog Food50.0% proteinPurina Pro Plan Weight Management Beef Rice Gravy Wet Dog Food50.0% proteinPurina Pro Plan Small Breed Chicken Carrots Gravy Wet Dog Food52.8% proteinPurina Beneful Steak & Green Beans in Gravy Wet Dog Food50.0% proteinPurina Beneful Chicken & Carrots Loaf Wet Dog Food36.4% proteinPurina Beneful Freshly Prepared Meals Beef Pouch Wet Dog Food45.5% proteinPurina Beneful Freshly Prepared Meals Lamb Pouch Wet Dog Food45.5% proteinPurina Beneful Kitchen Creations Lamb Veggies Wet Dog Food50.0% proteinPurina Beneful Prepared Meals Beef Chicken Wet Dog Food45.5% proteinPurina Pro Plan Complete Essentials Senior Beef Rice Gravy Wet Dog Food55.6% proteinPurina Beneful Beef & Peas Loaf Wet Dog Food36.4% proteinPurina Beneful Freshly Prepared Meals Chicken Pouch Wet Dog Food45.5% proteinNutriSource Turkey Dog Stew Tetrapaks Wet Dog Food40.0% protein

Our read // On the bag

Judge the finished food, not this word

“Minerals” low on the list is ordinary because a premix is used sparingly. Read any compounds in parentheses, then find the nutritional adequacy statement for your dog's life stage. For a growing large breed dog or a dog needing a controlled mineral intake, ask for the finished food's calcium and phosphorus analysis.

Sources

What we read

Checked October 1, 2026.

  1. 1 The impact of graded levels of fermented plant protein (Proteger®) in extruded foods on fecal quality, nutrient digestibility, and colonic fermentation in beagle dogs Frontiers in Animal Science, 2025 // Journal
  2. 2 Apparent digestibility and calcium and phosphorus in urine after feeding different combinations of calcium and phosphorus sources to adult dogs Journal of Animal Physiology and Animal Nutrition, 2024 // Journal
  3. 3 Effect of Supplemental Trace Mineral Source on Haircoat and Activity Levels in Senior Dogs Animals, 2025 // Journal
  4. 4 Factors that modify the effect of excess calcium on skeletal development in puppies British Journal of Nutrition, 2011 // Journal
  5. 5 AAFCO Dog Food Nutrient Profiles Based on Dry Matter AAFCO, 2013 // Regulator
  6. 6 What's in the Ingredients List? AAFCO, n.d. // Regulator
  7. 7 Ingredient Statement and Handling & Storage Instructions AAFCO, 2023 // Regulator
  8. 8 Reading Labels AAFCO, n.d. // Regulator
  9. 9 FEDIAF Code of Good Labelling Practice for Pet Food FEDIAF, 2019 // Industry
  10. 10 10 Things You Need to Know About Premixes DSM Nutritional Products, 2017 // Industry
  11. 11 Trace minerals: Micro-ingredients that carry big benefits for pet food Pet Food Processing, 2023 // Industry
  12. 12 Hepatic copper concentrations in 546 dogs (1982-2015) Journal of Veterinary Internal Medicine, 2018 // Journal
  13. 13 Expert Panel Upholds AAFCO Guidelines for Copper Concentrations in Foods for Normal Dogs AAFCO, 2023 // Regulator
  14. 14 Effects of diets with different calcium and phosphorus contents on the skeletal development and blood chemistry of growing great danes The Veterinary Record, 2000 // Journal
  15. 15 Influence of dietary calcium and phosphorus content in a fixed ratio on growth and development in Great Danes American Journal of Veterinary Research, 2002 // Journal
  16. 16 Dermatosis associated with feeding generic dog food: 13 cases (1981-1982) Journal of the American Veterinary Medical Association, 1988 // Journal
An ingredient on its own tells you very little. What matters is how much of it there is and where it sits in the list. That is why we weigh the top five rather than reacting to any single name further down. Back to the wiki

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