Consumer reading food label

Are you following developments in precautionary allergen labelling and information?

4 July 2023 | Helen Arrowsmith, Regulatory Affairs Manager and Allergen Specialist

In many jurisdictions there is currently no specific legislative requirement to provide information on allergens that are unintentionally present in food or drink due to cross-contact. This blog discusses precautionary allergen labelling/information (often referred to as ‘may contain’ statements) and details recent developments in this area.

Download our FREE Managing Food Allergens eBook today! Secure food safety, control and confidence through effective allergen management

Promotional material

Provision of allergen information

For the estimated 3-10% of adults and 8% of children globally with a food allergy, and many more people with other food hypersensitivities such as food intolerance and coeliac disease, there is currently no widely available cure - the only way to prevent reactions is to avoid the food that triggers symptoms. It is therefore vitally important that food businesses provide consumers with clear and accurate information about the potential or known presence of substances that could cause food hypersensitivity reactions in products, to allow consumers to make informed, safe food choices.

Several countries and regions (including the UK, Europe, America, Canada, Japan, Australia and New Zealand for example) have introduced legislation that requires the presence of major food allergens, and their derivatives, to be labelled when they are included as ingredients in prepacked foods. Such information is also increasingly required for non-prepacked food, such as in catering situations, to be provided to consumers.

Only a few jurisdictions, however, have specific legislative requirements relating to precautionary allergen declarations, i.e. information on the potential of unintended presence of food allergens. Such information is often called ‘precautionary allergen labelling’ (PAL) when it is on the label of prepacked foods or ‘precautionary allergen information’ when referring to non-prepacked foods.

Sources of allergen cross-contact

Ingredients can become contaminated with food allergens in the supply chain, for example during the growing, harvesting, processing and transport of crops. Allergen cross-contact may occur during the production of final products; this can happen when several food products containing or not containing different allergens, are made on the same premises, processing line or equipment.

Food businesses spend a lot of time, effort and money implementing allergen management practices, including controls to prevent or minimise the potential for allergen cross-contact. It should be considered though that very small amounts of food can cause reactions in sensitive people; for example, a drop of milk, a fragment of peanut or just one or two sesame seeds. Therefore, despite the best efforts of the food business, sometimes there remains an unavoidable risk of allergen cross-contact that cannot be sufficiently controlled.

When should precautionary statements be used?

Where food is marketed in a country or region where specific legislation applies regarding PAL, this must be complied with. Guidance from the Food Standards Agency states that in the absence of specific legislative requirements in the UK, precautionary statements regarding possible allergen cross-contact should be justifiable only on the basis of a meaningful risk assessment applied to a responsibly managed operation. Such statements should not be used as a substitute for good hygiene and/or safety practices; they should only be used where there is a demonstrable and significant risk of allergen cross-contact.

What should precautionary statements say?

In jurisdictions where the wording for such statements is regulated, this must be adhered to. In areas where the wording is not specified in law, research has found tens of different statements are being used to communicate to consumers. Most commonly, precautionary allergen labelling of prepacked food is seen to include use of statements such as ‘may contain X’ and ‘not suitable for those with X allergy’; whereas, for non-prepacked food, examples such as ‘produced in a kitchen which uses X’ are often seen. As there is currently no precise wording laid down in UK law, such statements provided on a voluntary basis must not mislead the consumer or be ambiguous or confusing.

Developments to be aware of

There is work being conducted and discussions happening at national and international levels about managing food allergens, the use of allergen threshold levels to inform allergen risk management for foods and standardising the application and wording of PAL. We have listed below some of these works worth being aware of:

Food legislation is constantly evolving. For all working in food and drink manufacture, retail and service, navigating the local and global regulatory environment and keeping abreast of regulatory developments is challenging. For over 100 years we have kept the global food and drink industry informed, compliant and prepared for the future. Our Regulatory experts guide our clients through the complexities of food labelling legislation world-wide, navigating the subtle differences between regions, markets and jurisdictions.

For support on precautionary allergen labelling/precautionary allergen information, allergen labelling, or food labelling, get in touch with our Regulatory Affairs team.

How can we help you?

If you’d like to find out more about allergen labelling, contact our support team to find out how we can help.

Contact an expert

Managing Food Allergens eBook

Download our FREE Managing Food Allergens eBook today! Secure food safety, control and confidence through effective allergen management.

Download eBook

More on Allergens

Allergen testing in laboratory

Why partner with Campden BRI for your allergen testing?

With cross contamination from allergens in the food supply chain increasing, getting an accredited, knowledgeable and experienced food allergen testing partn...


Selection of ingredients, herbs, spices and garlic

Product recalls: Undeclared allergens

UKAS accredited testing provides essential support to effectively manage and mitigate costly food industry product recalls caused by undeclared allergens.


Factory worker inspecting food products with clipboard

Insights from our Food Safety Risk Management seminar

See how we can support those with greatest responsibility for managing food safety risks, through topical updates from industry experts and networking opport...


Kiwifruit sliced in half

What you need to know about kiwifruit and other emerging elicitors of food allergy

Like for many crops, the use of kiwifruit is growing and changing across a range of food streams. This research shines a light on what food business operator...


Algae and seaweed growing in water

The allergenicity of edible algae – implications for food business operators

Food business operators need to be aware of seaweed and algal derived products as potential sources of food allergens in their food chains, and what to do to...


Woman making a purchase online using a credit card

Evaluating the food information, labelling and unintended food allergen presence of imported prepacked foods and drinks purchased online

Frequent food and drink product recalls occur globally due to incorrect labelling of food allergens.


Contact an expert