Free-from, dairy-free and vegan: what each food label actually guarantees
Three claims that look interchangeable on the front of a pack, but mean very different things for an allergy. Here is exactly what each one does, and does not, promise.
On the front of a pack, “free-from”, “dairy-free” and “vegan” can look like three ways of saying the same thing. They are not. One is tightly controlled, one is a brand promise, and one is about ethics, not allergies. Confusing them is one of the most common ways an allergic shopper gets caught out.
Vegan: about animals, not allergies
A vegan label means no animal-derived ingredients were deliberately used: no milk, egg, honey, meat or fish. That overlaps with several allergens, which is why it looks helpful.
The catch is that vegan says nothing about cross-contamination. A vegan biscuit can be made on the same line as a milk-chocolate one, picking up traces of milk along the way. For an ethical choice that is fine. For a diagnosed milk or egg allergy, the vegan logo on its own is not a safety guarantee. Use it as a shortlist, then check the ingredients and the “may contain” line.
Dairy-free: a claim, not a rule
“Dairy-free” is not legally defined in the UK. There is no fixed threshold a product has to meet to use it, which means it is only as trustworthy as the company making the claim. Most reputable brands use it carefully, but products labelled dairy-free have occasionally been found to contain milk traces from shared equipment.
Treat “dairy-free” as a useful signpost, then confirm with the two things the law does control: the ingredients list (where milk would be in bold if it were a deliberate ingredient) and any “may contain milk” line.
Free-from: the one with rules behind it
“Free-from” is the claim most likely to have real controls behind it. “Gluten-free” is the strongest case: by law it can only be used when the product contains 20 parts per million of gluten or less, tested and verified.
For other allergens, “free from milk” or “free from egg” is a manufacturer claim backed by dedicated recipes, separated equipment and cleaning regimes. It is generally the most reliable claim for an allergy, because the whole point of the product is to be safe for that allergen. Even so, read the pack to confirm exactly which allergen the claim covers, since “free from” lists vary product to product.
The quick comparison
- Vegan - no animal ingredients on purpose. No promise about traces. Good shortlist, not a safety guarantee.
- Dairy-free - not legally defined. As reliable as the brand. Always cross-check ingredients and “may contain”.
- Free-from - the claim with the most control behind it. Gluten-free is legally set at 20 ppm; other “free from” claims are dedicated, allergen-aware recipes. The most trustworthy of the three, but still read which allergens it names.
What to actually do at the shelf
Read in this order, every time: the bold allergens in the ingredients list first, then the “may contain” line, and only then lean on a front-of-pack claim. The front claim helps you find candidates quickly; the ingredients and precautionary lines are what you trust for the final decision. If a product is vegan or dairy-free but its “may contain” line names your allergen, it is not the one for you, however reassuring the front of the pack looks.
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Common questions
Is a vegan product safe for a milk allergy?
Not necessarily. Vegan means no animal ingredients were deliberately used, but it says nothing about cross-contamination. A vegan product made on a line that also handles milk can still carry traces. For a diagnosed milk allergy, trust a 'free from milk' claim or the ingredients and may-contain lines, not the vegan logo alone.
Does 'dairy-free' mean no milk at all?
'Dairy-free' is not a legally defined term in the UK, so it is only as reliable as the brand using it. Some products labelled dairy-free have still been found to contain milk traces. Check the ingredients list and the 'may contain' line as well.
What does 'free from' actually control?
Gluten-free is legally defined (20 parts per million or less). 'Free from' an allergen like milk or egg is a manufacturer claim backed by controlled recipes and cleaning, and is generally the most reliable allergy claim, but always read the pack to confirm which allergen it covers.