Codex Expert panel recommendations on food allergen labelling

Food allergies are widely acknowledged and recognised as a public health priority. Global harmonisation of food allergen labelling and control will expand consumer protection and reduce trade barriers.

The Codex Alimentarius Commission (CAC) plays a pivotal role in establishing standard approaches to food safety, including allergen labelling and control. It has been decades since Codex’s global guidance on food allergen labelling was published (1999). Since then, great strides have been made, deepening our understanding of food allergies and allergens. During the same time period, the need for an internationally coherent allergen labelling and control framework has been highlighted time and again. This includes creating a framework for reliable and risk-based Precautionary Allergen Labelling (PAL).

South Africa is a CAC member country, and where applicable, aligns its food regulations with Codex standards. However, South Africa is unique in the way it approaches allergen labelling. Since 2010 it has been one of only a few countries to definitively regulate precautionary allergen labelling (PAL), and perhaps the only country that requires PAL to be applied based on risk.

In 2020 the CAC embarked on a journey to update its guidance documents on the labelling and management of food allergens. Among other activities, this resulted in the FAO & WHO convening an expert panel. The panel consisted of multiple experts from across the globe who were asked to give guidance on key allergen labelling aspects. The expert panel organised their work in phases, addressing one key aspect per phase (box 1). The conclusions from all the meetings have been published, and the FACTS team took the time to summarise the key information. For the full summary report, read more on the links in box 1.

BOX 1

  • Phase 1Review and validate the Codex priority allergen list.
  • Phase 2 Review and establish threshold levels for priority allergens.
  • Phase 3 Review and evaluate the evidence in support of precautionary labelling.
  • Phase 4 – Review and establish exemptions for the food allergens.

      ACRONYMS:

  • CAC – Codex Alimentarius Commission
  • CCFH – Codex Committee on Food Hygiene
  • CCFL – Codex Committee on Food Labelling
  • FAO – Food & Agricultural Organisation
  • WHO – World Health Organisation
  • PAL – Precautionary Allergen Labelling
  • UAP – Unintended Allergen Presence

      DEFINITIONS:

  • Elicited Dose 5% (ED05): The amount/dose of protein from a specific priority allergen that is predicted to cause objective symptoms in 5% of the allergic population.
  • Adverse food reaction: An adverse (bad) response to food or a specific type of food by the body.
  • Immune-mediated hypersensitivity reaction: An abnormal immune response to an otherwise harmless compound in food, normally protein.
  • Objective reaction: Visible or measurable reaction that can be observed by someone else (as opposed to a subjective reaction, which is felt by the allergic patient but cannot be observed by someone else).
  • Unintended Allergen Presence: Also called ‘cross-contact’ allergens. This is when an allergen is present in a foodstuff due to cross-contact or cross-contamination, rather than having been deliberately added as part of the product formulation.
  • Action Level: The concentration of protein from the allergen, based on the proposed reference dose, that defines whether PAL is required. At concentrations ≤ the action level, PAL is not required. At concentrations > the action level, PAL is required.

Phase 1 – Review and validation of the Codex priority allergen list that require mandatory declaration (i.e. must be labelled)

 

Objective

 

  • Review the current Codex priority allergen list to establish whether any foods and ingredients need to be added or removed.
  • Provide clarity on the grouping of foods and ingredients included on the list.
  • Provide guidance on whether certain foods and ingredients, e.g. highly refined ingredients derived from priority allergens, can be exempted from mandatory declaration.

 

Criteria

 

The criteria below were established and applied to select priority allergens:

  • Prevalence – How many people experience immune-mediated hypersensitivity reactions when they are exposed to the food in question?
  • Severity – How severe are resulting hypersensitivity reactions likely to be, and how many individuals are likely to have severe objective reactions such as anaphylaxis?
  • Potency – How much of the offending food or ingredient is required to cause an objective reaction?

 

Conclusions

 

  • Only foods that cause immune-mediated hypersensitivity reactions (IgE-mediated food allergies & coeliac disease) should be included on the Codex priority allergen list.
  • The global priority allergen list should include:
    • Cereals containing gluten – wheat and other Triticum species, rye and other Secale species, barley and other Hordeum species and their hybridised strains
    • Crustaceans
    • Eggs
    • Fish
    • Milk
    • Peanut
    • Sesame
    • Tree nuts – almond, cashew, hazelnut, pecan, pistachio, walnut
  • Based on prevalence data, the foods below can be considered to be included on individual countries’ priority allergen lists:
    • Buckwheat
    • Celery
    • Lupin
    • Mustard
    • Oats
    • Soybean
    • Tree nuts – Brazil nut, macadamia, pine nut.
  • The foods below were highlighted and placed on a ‘watch list’. Based on future prevalence, severity and potency data they will be evaluated for inclusion on the priority list.
    • Pulses
    • Insects
    • Kiwi
  • Foods and ingredients derived from priority allergens should be evaluated for labelling exemption on a case-by-case basis.

For the full summary report, please click here.
For the full report, please click here.

Phase 2 – Review and establish threshold levels for priority allergens

 

Objective

 

  • Establish threshold levels for priority allergens below which most consumers will not suffer an adverse food reaction.
  • Recommend appropriate analytical methods to test food and surfaces for the presence of priority allergens.
  • Make recommendations on what the minimum performance criteria for analytical methods should be.

 

Conclusions

 

  • The recommended reference doses were based on ED05* values and expressed in mg/kg protein from the allergenic source.
  • It was advised that analytical capability does exist to some degree to implement and monitor the recommended reference doses, but that there are limitations in method performance.
  • It was recommended that the expression of analytical results be standardised to mg/kg protein from the allergenic source.
  • It was advocated to address deficiencies in analytical methodology, to develop method performance criteria, and to improve accessibility to reference materials.
  • The panel expressed that there is a need to better understand assay performance in different matrices, and for transparency regarding assay-specific reagents such as antibodies used in ELISA.
Priority AllergenReference Dose Recommendation
(mg total protein from the allergenic source)
Walnut & Pecan*1.0
Cashew & Pistachio*1.0
Almond**1.0
Peanut2.0
Egg2.0
Hazelnut3.0
Wheat5.0
Fish5.0
Shrimp200.0
Milk2.0
Sesame2.0

* See considerations in full report. ** Provisional.

For the initial full summary report, please click here.
For the follow-up summary report, please click here.

For the full report, please click here.

Phase 3 – Review and establish precautionary labelling of the priority allergens in foods.

Objective 

  • Analyse and evaluate the evidence supporting precautionary labelling (PAL).
  • Provide support for the CCFL’s current efforts to formulate guidance on the use of PAL.

 

Conclusions

 

  • Currently the use of PAL is voluntary in most countries, and its application is typically not based on the outcomes of a standardised risk assessment process.
    • The arbitrary use of PAL and/or inappropriate absence of PAL results in consumers misinterpreting the risks posed by UAP. 
    • Currently, consumers find PAL to be confusing, leading to an erosion in consumer trust and effective communication, which increases the health risk to allergic consumers.
  • Several manufacturers, consumers and other stakeholders do not understand the current strategies used to communicate the risk associated with UAP in products. 
  • An effective strategy to protect consumers from unintended allergen exposure is to have a PAL statement based on a comprehensive allergen risk management programme, and implemented using a single, clear, unambiguous advisory statement that conveys that the particular food is ‘not suitable for’ consumers with a particular allergy.
  • Allergic consumers and other stakeholders must be educated on the principles and meaning of PAL to ensure its correct interpretation.
  • The recommended reference doses are not to be used for claiming that a food is free from specified allergens. 
  • The panel will consider ingredient exemptions from priority allergen labelling in the future. 
  • Education of allergic consumers (or those providing food for them, including FBOs) and other relevant stakeholders (e.g., risk assessors, risk managers, healthcare providers) is critical, to ensure understanding of the applied principles and the implications of the chosen phraseology.
  • Under the proposed framework the committee concluded/recommended that:
    • PAL based on the proposed reference doses (see phase 2 conclusions) will protect the vast majority of food-allergic individuals from severe reactions.
    • Individuals with food allergies avoid products that carry a PAL for the allergens of concern to them. However, the panel recognises that such foods may not pose a risk to less sensitive individuals.

For the full summary report, please click here.
For the full report, please click here.

Phase 4 – Review and establish exemptions for the food allergens.

 

Objective

 

  • To develop an approach or framework that can guide decision making on whether an ingredient or product can be exempted from mandatory declaration. This is applicable when an ingredient is derived from or contains a food that causes hypersensitivity, but the food is highly refined and may not cause a reaction.

 

Conclusions

 

  • A guidance process in the form of a flow diagram was created, tested (using already exempted ingredients as case studies) and found to be fit for purpose.
  • The process comprises 10 steps, each asking for key information that will help to determine whether the ingredient can be exempted.
  • Among other requirements, the process asks:
    • For a clear description of the ingredient or product.
    • For documentation describing how it has been used in the past, its safety data, and whether it has ever triggered an allergic reaction.
    • For a description of the ingredient/product, including process parameters, composition and purity, and how much total protein from the priority allergen, it contains.
    • Whether it is equivalent to a product that has already been granted an exemption.
    • If necessary, for information on the maximum amount of protein, from the allergen, that consumers are likely to consume, based on the typical use of the ingredient/product.
    • If necessary, for information on how the allergenicity of the ingredient/product is reduced due to processing.
    • If necessary, for a clinical evaluation of the ingredient/product.
  • The flow-chart was found to be effective, and proposed for use in the consideration of future exemption decisions.

For the full summary report, please click here.

What’s next?

The recommendations will go through a series of discussion and approval phases, shown below:

Figure 1. Next step in implementing the recommendations made by the expert panel.

Concluding remarks

Once the content of the reports is accepted by Codex and incorporated into official standards, CAC member countries can adopt it or incorporate it into their allergen labelling framework. It may not result in a significant change in South Africa’s allergen labelling regulations, but it will certainly strengthen them, and bring international regulations into line with South Africa’s approach.

Remember, although the continued work done by Codex is pivotal for global harmonisation, it remains the responsibility of food companies to acknowledge that food allergens remain a public health risk, and to establish and maintain robust allergen controls to ensure accurate and compliant allergen labelling.

FACTS offers a range of allergen management and regulatory services. Contact us to find out how we can help you label and control food allergens.