Do not use a vegan claim alone to choose food for a milk or egg allergy. UK guidance separates intentionally used ingredients from cross-contact during production. Read ingredients, allergens and precautionary wording together.
Vegan describes intentional ingredients
The UK guide explains vegan wording as no intentionally used ingredients of animal origin. It does not guarantee the absence of animal allergens from a shared factory or preparation area. This is UK guidance, not another country's legal definition.
Read three layers of information
Check the vegan claim, the ingredient and emphasized allergen information, then wording such as May contain. Milk as an ingredient and possible milk cross-contact convey different information, but both matter when choosing for an allergy.
Missing wording has limits too
Do not infer personal safety just because no precautionary statement is visible. Recheck changed products. Ask the maker or seller a specific allergen question when necessary information is missing or unclear.
Choose another option until clarified
Follow the avoidance plan already supplied by the treating professional for a diagnosed allergy. Vegan, gluten-free and lactose-free are not interchangeable. This guide certifies no particular product as allergy-safe.
Turn observations into a decision
| Observation or wording | Meaning and limit | Next action |
|---|---|---|
| Vegan; no milk ingredient; May contain milk | Intentional ingredients and cross-contact warning are different information | For milk allergy, apply the existing professional avoidance plan |
| Vegan; allergen information unclear | Vegan wording alone cannot confirm allergy suitability | Ask the maker a specific question about the relevant allergen |
| New package of a familiar product | Ingredients and warnings may change | Reread the current package rather than relying on memory |
A worked example
Fictional A says Vegan and May contain milk. Fill both 'not an intentional ingredient' and 'cross-contact warning'. Fictional B shows no warning, but that alone does not justify writing 'milk absolutely absent'. For a diagnosed allergy, combine actual product information with the treating professional's existing avoidance plan.
Official sources checked
Official sources checked 12 October 2026. AI assisted writing and translation; numbers, scope and sentence meaning were reviewed repeatedly. No individual product test or personal diagnosis or prescription is provided.