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Ingredient file // Vitamin or mineral

Vitamin B5

A necessary vitamin, not an energy boost

Vitamin B5 is pantothenic acid, usually added to kibble as calcium D-pantothenate. Dogs need it to make coenzyme A, which helps them use food for energy. Extra B5 has not been shown to make a healthy dog more active.

What it is
An essential, water soluble vitamin usually supplied to dog food as a dry calcium salt.
Made from
D-pantolactone, beta-alanine and a calcium salt
Main job
Supplies essential vitamin B5
Typical amount
Not published
Watch for
Incomplete diets that miss vitamin requirements
Not the same as
D-panthenol

Our read // In our catalog

In 1 of every 161 foods we track

Share of foods that list it

1%

14 of the 2,250 foods we track, from 2 brands. 11 dry dog food, 3 wet dog food.

Each square is 1% of the catalog

Where it sits on the label

Median position 31. In the top five of 0 foods, so it is usually a minor ingredient.

Top five List position, heaviest first

Above the salt

0%

Usually listed after the salt, which caps it at roughly 1% of the recipe in 100% of foods.

Price per lb

Foods with it $1.59
All foods $3.24

Median of the cheapest bag price across 6 priced foods, 51% below the catalog. The price is the food's, not the ingredient's.

Who leans on it

64%

of the foods that list it are from Nulo. 2 brands use it in total.

What it is

How it is made

Vitamin manufacturers synthesize calcium D-pantothenate for food and feed. It is made to supply a measured amount of B5, not recovered as a leftover. The finished powder goes into a vitamin mix.4,9

  1. 01 // Source Two building blocks Industrial synthesis starts with D-pantolactone and beta-alanine rather than extracting B5 from food.
  2. 02 // Process Join molecules A chemical reaction combines the building blocks to produce pantothenic acid.
  3. 03 // Process Add calcium Adding a calcium salt produces calcium D-pantothenate crystals; the reagent is not specified here.
  4. 04 // Output Vitamin powder A white powder reaches feed plants for measured blending into a vitamin mix.

What is in it

Composition, dry matter

92

% activity

Calcium D-pantothenate supplies about 92% of its dry weight as active pantothenic acid. The salt weight and vitamin amount differ.

Calcium D-pantothenate 99.7-100.2%4
Pantothenic acid activity 92%5
Calcium 8.2-8.6%6

These figures describe the dry vitamin additive, not finished kibble. The salt assay comes from 5 manufacturer-submitted batches; the calcium range is a pharmacopoeia specification.4,6

Why it is in the bag

What the manufacturer gets

  1. 01

    Meets a vitamin requirement

    Dogs need dietary pantothenic acid to make coenzyme A. AAFCO specifies a minimum for complete food, so manufacturers add a measured source when the rest of the recipe does not supply enough.3,7

  2. 02

    Keeps dosing consistent

    The dry powder has defined vitamin activity and goes into a vitamin mix. That lets a formulator measure the added B5 alongside the amount supplied by other ingredients.4,5,9

  3. 03

    Supplies B5 at scale

    Chemical synthesis produces the same concentrated feed ingredient in quantity. Because the food needs only milligrams per kilogram, the vitamin mix adds nutrition without changing the recipe's bulk.3,4,9

How much AAFCO's dog food profile specifies at least 12 mg of pantothenic acid per kg of dry food for adult maintenance and growth.3

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. Vets say

    Vitamin B5 prevents poor growth from deficiency

    Evidence

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

    In a controlled study of 22 dogs, B5-deprived pups lost appetite and growth, then improved when calcium pantothenate was restored. It shows why adequate B5 matters, not a growth benefit from extra B5 in complete food.1

  2. Brands say

    More B5 improves a dog's vitamin status

    Outruns the evidence

    Evidence

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

    A trial assigned 64 healthy dogs to diets with graded vitamin intakes. Blood pantothenate rose with intake by day 122, but several vitamins changed together and a higher blood reading was not shown to improve health.2

  3. Brands say

    Extra B5 gives healthy dogs more energy

    Outruns the evidence

    Evidence

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

    B5 helps make coenzyme A, which is involved in using food for energy. The 64-dog vitamin trial measured blood levels and coat condition, not activity. That mechanism does not demonstrate an energy boost from extra B5.2,7

  4. Brands say

    More B5 makes a dog's coat shinier

    Outruns the evidence

    Evidence

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

    Coat and hair condition did not change in the 64-dog trial despite graded vitamin intakes. Several vitamins changed together, so it cannot isolate B5, but the study provides no support for a shinier coat.2

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No

    It supplies an essential vitamin in a small amount. It contributes no meaningful protein, fat or bulk. Its place near the end of an ingredient list reflects the dose, not a lack of purpose.3,8

  2. Q02

    Is calcium pantothenate vitamin B5?

    Yes

    Calcium D-pantothenate is a dry source of pantothenic acid. Its calcium is part of the salt. This ingredient is added for B5, not to meet the dog's calcium requirement.4,5,6

  3. Q03

    Should I add a B5 supplement?

    Usually no

    A complete food is formulated or tested for its stated life stage. The dog study showing harm used a deliberately deficient diet, while graded vitamin intakes in healthy dogs did not improve coat condition.1,2,8

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Nulo 9
  2. Blue Seal 5

Usually listed with, share of the foods that list it

  1. Chicken Fat 79%
  2. Barley 71%
  3. Flaxseed 64%
  4. Chicken Meal 50%
  5. Brown Rice 43%
  6. Oats 43%
  7. Millet 36%
  8. Fish Meal 36%
  9. Rice Bran 36%
  10. Dried Plain Beet Pulp 29%
  11. Pumpkin 21%
  12. Coconut Oil 21%

Our read // On the bag

Check the whole diet, not this line

Vitamin B5 near the end of the list is normal because a dog needs only a small amount. Check the nutritional adequacy statement for your dog's life stage, then judge the food as a whole. The B5 listing shows a vitamin source, not a reason to expect extra energy or a shinier coat.

Sources

What we read

Checked October 1, 2026.

  1. 1 Pantothenic acid deficiency in dogs ResearchGate, reproducing full text from The Journal of Nutrition, 1944 // Journal
  2. 2 Blood vitamin concentrations in privately owned dogs fed non-standardized commercial diets and after intake of diets with specified vitamin concentrations. Journal of Animal Physiology and Animal Nutrition, abstract on EBSCOhost, 2007 // Journal
  3. 3 AAFCO Dog and Cat Food Nutrient Profiles AAFCO, 2014 // Regulator
  4. 4 Assessment of the feed additives calcium d-pantothenate and d-panthenol for all animal species for the renewal of their authorisation (DSM Nutritional products Ltd) EFSA Journal, 2025 // Journal
  5. 5 5. Derangements in Vitamin Nutrition Food and Agriculture Organization of the United Nations, n.d. // Government
  6. 6 Calcium Pantothenate Japanese Pharmacopoeia, Pharmaceuticals and Medical Devices Agency, 2011 // Regulator
  7. 7 Pantothenic Acid - Health Professional Fact Sheet National Institutes of Health Office of Dietary Supplements, n.d. // Government
  8. 8 Reading Labels AAFCO, n.d. // Regulator
  9. 9 Vitamin B5 DSM-Firmenich, n.d. // Industry
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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