casein

Egg & dairy

Casein is milk's main protein — and the usual culprit when "dairy allergy" is real. Caseinates, the allergy-vs-intolerance line, and what the engine sees.

Also appears on labels as: sodium caseinate · calcium caseinate

What it is

About 80% of milk protein is casein; on labels it appears as casein or as sodium/calcium caseinate — functional forms that emulsify, bind, and enrich. It's low in lactose: the milk sugar mostly stays in the whey when casein is separated out.

Why it's in pet food

A slow-digesting, complete milk protein with useful texture behavior — it holds fat and water together in soft treats and pastes. When dairy-PROTEIN allergy exists in a pet, casein is the protein usually responsible: allergy is to protein, intolerance is to lactose, and casein sits on the allergy side.

How Bowlmark scores it

Scores are deterministic math over the printed label — the rules below apply to every product identically, and nothing estimates or fills in a blank.

No engine flag: casein and caseinates neither earn nor cost points in any position. For a pet with a flagged dairy allergy the relevant Bowlmark surface is the Fit check on your pet's profile, which highlights matching ingredients — the Universal Score stays a property of the product, not of your pet.

For cats

Cats are among the species where dairy-protein allergy is reported with some regularity; a cat with confirmed dairy allergy needs casein and caseinates avoided, not just milk.

Read the full methodology

Foods that list casein

Ranked by score where scores exist. Placement here is never sold.

Sources

Further reading

Cite this page

Bowlmark. "Casein in pet food — what it is and how it scores." https://www.bowlmark.com/ingredient/casein

Engine
Methodology engine v1.1.0 · config 13c99e2f
Verified
Last verified August 12, 2026

No stored score to stamp yet — the engine and config above are the ones a scan runs today.

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