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Ingredient file

Zinc Oxide

An inorganic zinc compound used as a trace mineral supplement.

Our read // In our catalog

In 1 of every 22 foods we track

Share of foods that list it

5%

120 of the 2,595 foods with an ingredient list on file, from 15 brands. 86 dry dog food, 34 wet dog food.

Each square is 1% of the catalog

Where it sits on the label

Median position 26. 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 $2.50
All foods $3.23

Median of the cheapest bag price across 74 priced foods, 23% below the catalog. The price is the food's, not the ingredient's.

Who leans on it

43%

of the foods that list it are from Nutro. 15 brands use it in total.

What it is

Why it turns up in dog food

  • Supplies zinc for skin and immune function, though it is the least absorbable of the common zinc forms.

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Nutro 51
  2. Bil-Jac 27
  3. Tiki Dog 14
  4. I and Love and You 5
  5. Iams 5
  6. Hungry Bark 4
  7. By Nature 4
  8. Dr. Tim's 2
  9. Health Extension 2
  10. Blue 1

Plus 5 more brands.

Amazon best sellers that list it

  1. #42 Iams Adult Large Breed Dry Dog Food
  2. #76 Nutro Natural Choice Adult Chicken & Brown Rice Recipe 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 68%
  2. Natural Flavor 38%
  3. Chicken Meal 34%
  4. Chicken Fat 32%
  5. Brewers Rice 27%
  6. Oatmeal 26%
  7. Dried Plain Beet Pulp 26%
  8. Chicken Broth 22%
  9. Dried Beet Pulp 21%
  10. Flaxseed 21%
  11. Whole Grain Sorghum 21%
  12. Brewers Dried Yeast 20%
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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