An Allergen Alert Was Issued - What Do I Do?

A clear UK guide to allergy alerts and food recalls. What each type means, how the FSA classifies them, what you should do when one affects a product in your kitchen, and how to make sure you never miss the ones that matter.

Short answer. In the UK, when a product is found to have been mis-labelled for an allergen, the Food Standards Agency (FSA) issues an Allergy Alert. Stop eating the product, check the batch details against the alert, return the pack to the retailer for a full refund, and report the incident to Trading Standards through the FSA if it affected you. Sign up to the FSA email list so you never miss another one.

The two things worth knowing about UK allergen alerts

They are legally required. Under UK food law, a manufacturer, importer, or retailer that discovers a mis-labelled allergen has to act. The FSA either issues an Allergy Alert directly or an Allergen Alert Notice (AAN) that the retailer distributes. This is not a marketing choice; the system is regulated.

They are specific. Every alert lists the exact product, brand, pack size, batch codes, and best-before dates affected. This matters because the same product can be safe if it is from a different batch. The alert is telling you which packs are unsafe, not that the whole brand or product is off-limits forever.

The types of alert you might see

• Allergy Alert (FSA) - a specific allergen labelling failure. This is the one that matters most to allergic families. It is what happens when the pack does not correctly declare an allergen that is in the product.
• Food Alert for Action (FSA) - a broader recall that requires the food to be removed from sale for any food-safety reason. Allergen failures often trigger these too.
• Product Recall Information Notice (PRIN) - the retailer or manufacturer’s own communication, often the actual in-store notice you see on a supermarket noticeboard.
• Allergen Alert Notice (AAN) - the retailer’s in-store notice for allergen-specific issues, usually posted at customer service and by the affected product.

For a shopper, they all mean the same practical thing: stop, check, return.

What to do the moment you learn about an alert

Step 1 - stop. Do not eat, prepare, or share the product. If a child in the household is old enough to help themselves, tell them explicitly.

Step 2 - match the pack. Get the product out of the cupboard or fridge and match it against the alert. You are looking for:

• Brand name (usually obvious).
• Product name and pack size.
• Batch code or product code - usually printed on the base of a bottle, the side of a tin, or the crimp of a tube. This is the field that most often decides whether your specific pack is affected.
• Best-before or use-by date.

If any of the specific batches listed match yours, your pack is affected. If they do not, and the alert only covers specific batches, your pack is not affected. Some alerts cover all packs in circulation, in which case any pack of that product is affected.

Step 3 - assess exposure. Ask when the pack was opened, how much has been eaten, and by whom. If a household member with the affected allergy has already eaten some, follow their allergy action plan and, if they have symptoms, act on the plan (adrenaline auto-injector, 999 for severe reactions).

Step 4 - return the pack. Take the pack (or a photo of it if you have thrown the packaging away but kept some of the food) to the retailer. UK retailers refund recalled products in full without a receipt. You do not have to be the person who originally bought it.

Step 5 - report if it affected you. If your allergic family member reacted to the mis-labelled product, tell the FSA. The reporting route is at food.gov.uk - use the “Report a food incident” form. Your report joins the record that keeps the alert system honest.

How to catch alerts before they catch you

The single most useful thing you can do is subscribe to the FSA email list, because in practice, you will not be watching the FSA website every day. Sign up at food.gov.uk/news-alerts. Once subscribed, alerts land in your inbox as they are issued. There is no premium tier, no marketing, and the email is only sent when there is an actual alert.

Other useful channels:

• Your usual supermarket’s own alert page. Most UK supermarkets have a product recall page updated in near real time.
• The FSA Twitter feed if you use it.
• Nutrasafe (see our allergen scanner apps compared round-up) includes a UK-recalls feed within the app.

Do not rely on a scanner app in isolation to catch an alert. The alert is generated because the label was wrong - which means a scanner reading the (wrong) label will not necessarily flag the risk. The FSA alert is the source of truth.

Common allergen alerts and what they usually mean

Looking at the pattern of UK allergy alerts across recent years, a few categories come up more often than others.

• Undeclared milk in “dairy-free” or vegan-labelled products. Often a manufacturing crossover on a shared line.
• Undeclared peanut, tree nut or sesame in seasoned or bakery products. Sometimes the label says “nuts” but a specific nut is not named as required under UK law.
• Undeclared soya in cheaper meat products (soya protein used as a binder).
• Undeclared mustard or celery in seasoning mixes, sauces and ready meals.
• Undeclared sulphites in dried fruit, wine, cured meats, and some soft drinks (above the 10 mg/kg declaration threshold).
• English vs Welsh vs foreign-language label mismatch - a product legally required to have a UK-format label ends up on shelves with a European or import label that does not match UK allergen rules.

Knowing this pattern helps you prioritise. If a category you buy often is over-represented in alerts, it is worth being extra careful with new brands or unfamiliar products in that category.

For families with school-age children and Natasha’s Law

Natasha’s Law (October 2021) requires pre-packed for direct sale (PPDS) food to carry a full ingredients list with the 14 UK allergens clearly emphasised. Alerts on PPDS products (school lunches, canteen sandwiches, deli counters, take-away pre-packed items) are less centralised than supermarket alerts. If you have a child at school, ask the caterer directly:

• How they receive product-level alerts from their suppliers.
• How they communicate a recall to parents.
• What their process is if a recalled ingredient turns out to have been used in the kitchen.

A written answer to those three questions is worth pinning to the fridge.

A short recall drill worth doing once

At an unstressed moment, run through the drill:

1. Pick a product in your kitchen that contains your household allergen.
2. Find the batch code and best-before date.
3. Note who has eaten from that pack in the last month.
4. Note what you would do first if that product came up in an alert tomorrow.

If any step is slow, fix it now. Batch codes are easier to find when you know where to look on your usual brands. Emergency plans work better when the household has rehearsed them once, not for the first time under stress.

Where to go next

• Sign up for FSA alerts: food.gov.uk/news-alerts.
• Choose an allergen scanner: allergen scanner apps compared - one of them (Nutrasafe) covers UK recalls in-app.
• Learn the labelling rules the alerts are enforcing: the 14 major allergens UK law must declare and Natasha’s Law explained.
• Know what to do when a “may contain” appears: may-contain decision aid.

Written and reviewed by the Food Allergy Lab editorial team.