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🥛 Milk allergy: label names, hidden sources & scanning
Milk is one of the most common food allergens, and one of the hardest to avoid by eye: milk proteins (casein and whey) appear in processed foods under many technical names. Milk allergy is an immune reaction to these proteins — different from lactose intolerance, which involves the milk sugar.
Hidden label names our scanner matches
An ingredient list can contain milk without ever using the word. These are the actual terms Scallergy's matching engine checks — the same list the app uses when it scans a barcode:
Common derivatives
Where milk commonly hides
- baked goods and pastry
- milk chocolate and many candies
- processed meats and sausages
- instant soups and sauces
- protein powders
- margarine and spreads
How Scallergy verdicts milk
Avoid — milk (or one of the label names above) appears in the product's ingredient list.
Caution — the product carries a “may contain” / cross-contamination warning for it.
Unknown — we don't have trustworthy ingredient data, and we say so instead of guessing. The verdict is always driven by what's in the product; the severity you set in your profile is shown as context.
Scan for milk in seconds
Set milk in your allergen profile once — every barcode scan checks all 18+ label names above automatically. Free, independent, no ads.
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Frequently asked questions
Which label names mean milk?
Beyond the word “milk” itself, look for terms like casein, caseinate, whey, lactose, lactalbumin, lactoglobulin. These are the exact terms Scallergy's scanner matches when it checks an ingredient list.
Does milk have to be declared on the label?
Yes — in the EU (Regulation 1169/2011, Annex II) and the US (FALCPA/FASTER Act) milk must be emphasised in the ingredient list of prepacked food.
What does “may contain milk” mean?
“May contain” is a voluntary cross-contamination warning: the product doesn't list it as an ingredient, but it is made where contact is possible. Scallergy shows these as a Caution verdict — distinct from Avoid, which means the allergen is actually in the ingredient list.
Can Scallergy guarantee a product is milk-free?
No — no app can. Scallergy checks ingredient data from USDA FoodData Central, Open Food Facts, and community submissions, shows its source and an honest “Unknown” when data is thin, and is assistive only: always check the printed label and follow your allergist's advice.
Related allergens
Scallergy is assistive, not medical advice. Ingredient data can be incomplete or out of date — always check the physical label and consult an allergist about your allergies. Sources: EU Regulation 1169/2011 (Annex II); US FALCPA (2004) and FASTER Act (2021); our data sources.