To complain about a food advert, first save the exact claim, where it appeared and when you saw it. Send advertising complaints to the Advertising Standards Authority; report possible food labelling or safety breaches to the relevant local authority. The route depends on whether the problem is an advert, a pack label or the food itself.
Start by separating the advert from the pack
The first question is not whether a food claim feels exaggerated. It is where the claim appeared. A paid social-media post, a poster, a video advert, a retailer email or a sponsored search result is advertising territory. A statement printed on a jar, carton or wrapper is primarily a food-labelling matter. The same phrase can appear in both places, but the route for complaining may still differ.
The Advertising Standards Authority, usually called the ASA, considers complaints about advertising in the UK across many media. Its published advertising rules include requirements that marketing communications must not materially mislead and that objective claims can be substantiated. Food advertising has additional rules, including rules relevant to nutrition and health claims. The ASA can assess the advert as presented to its audience, including its wording, images, qualification text and targeting context.
Food labels are subject to food-information law and are generally enforced locally by Trading Standards services or environmental health services, depending on the issue and the authority’s arrangements. A label can therefore be a poor fit for an advertising complaint even where the message resembles an advert. If the concern is undeclared allergens, unsafe food, contamination or an immediate food-safety risk, treat it as a safety or food-information report rather than waiting for an advertising outcome.
Keep the distinction practical. Ask: could a person only encounter this statement by seeing marketing? If yes, begin with the ASA. Ask: is this information fixed to the food or required to accompany it at sale? If yes, contact the local authority responsible for food enforcement. If both are true, preserve evidence for both routes and explain that the same wording appears in two settings.
Use this decision rule before submitting anything
A complaint is easier to direct when it identifies a concrete statement and the setting in which it was made. Do not reduce the concern to a general dislike of an ingredient, a dietary view or disappointment with a product. State what was said, what meaning you think an ordinary shopper would take from it, and why that meaning may be unsupported or misleading.
| What you found | Usual first route | What to preserve |
|---|---|---|
| Paid online post, video, poster, magazine advert, promotional email or sponsored listing | Advertising Standards Authority | Screenshot or recording, date, platform or publication, advertiser name and full wording |
| Claim printed on a packet, bottle, label, menu or shelf label | Local authority food enforcement, often Trading Standards or environmental health | Photos of every relevant panel, product name, batch or lot details where available, place and date of purchase |
| Missing allergen information, suspected contamination or a food-safety concern | Local authority food-safety team; use urgent public-health routes where appropriate | Food, packaging, receipt if available, photographs and details of any immediate risk |
| Advert repeats a claim that also appears on the pack | ASA for the advert, local authority for the label | Separate captures showing each version and where it appeared |
This is a routing rule, not a finding that a breach has occurred. An advert may be unpleasant, implausible or contrary to a shopper’s preferences without breaching an advertising rule. Conversely, a small word such as “clinically”, “proven”, “reduces” or “high” can carry a specific factual implication. Copy it exactly. A complaint based on the actual language gives the receiving body something it can test.
Preserve the version a shopper actually saw
Advertising changes quickly. A post may be edited, an offer may end or a product page may show different copy after a complaint is made. Capture the material before reporting it. For a webpage or social-media post, take a full screenshot that includes the claim, the account or advertiser, and enough surrounding material to identify the context. If the claim appears in a video, record the relevant section or note the exact time at which it appears. For an email, retain the message and its subject line rather than forwarding only a paraphrase.
For physical material, photograph the whole item before taking close-ups. A front-of-pack slogan can be altered by a qualification on the side panel, an asterisk, a serving-size statement or a different product name. This does not necessarily make the claim acceptable, but it matters to the assessment. Photograph display material as it was encountered, including shelf-edge wording where it is part of the message.
Write a short contemporaneous note. Include the date, the approximate time if useful, the location or platform, and whether the content was targeted or generally visible. If an influencer or creator posted the material, record any labels indicating an ad, paid partnership, affiliate relationship or gifted product. The question may concern disclosure as well as the food claim itself.
Do not edit images in a way that obscures their source or changes the wording. Cropping an irrelevant area is usually less useful than retaining the full original. Do not rely on memory for precise wording. A phrase such as “supports immunity” is not the same claim as “prevents illness”, and the distinction can determine whether a complaint concerns a specific health outcome, a general impression, or a claim whose context needs further examination.
Write an ASA complaint around one testable problem
An ASA complaint does not need legal drafting. It does need enough detail to identify the ad and the alleged problem. Start with the advertiser, the medium, the date seen and the exact claim. Then explain the likely consumer takeaway in ordinary language. Finally, say why you believe that takeaway is misleading, harmful, irresponsible or inadequately evidenced. Attach or retain the evidence you captured.
A focused complaint is usually more useful than a long account of every concern. For example, separate a concern about an unsubstantiated health claim from a concern that an online post was not clearly identifiable as advertising. They may arise from the same post, but they are different questions. Similarly, distinguish “the product did not suit me” from “the ad promised a specific result that a reasonable shopper would understand as guaranteed”. The former may be a consumer-service issue; the latter identifies an advertising representation.
Where a food claim uses technical language, explain the ordinary implication rather than attempting to settle nutritional science yourself. You can say that a claim appears to promise prevention, treatment, weight loss or a measurable bodily change. The ASA may seek substantiation from the advertiser and assess the material against the applicable advertising rules. It is not necessary for a complainant to supply a study, although a clear account of the wording and context remains essential.
Do not make the complaint about whether a product is worth buying. The useful question is whether the communication could lead consumers to a materially mistaken decision, whether evidence is needed for the claim made, or whether the ad omitted information necessary to understand an offer or qualification.
Report label, allergen and safety concerns through food enforcement
When the problematic words are on the pack, begin by identifying the business named on the label and the local authority area connected with it, if that information is available. In practice, a local authority may receive the report, advise on the appropriate team or pass information to another authority. Give the report a clear subject, such as missing allergen emphasis, misleading ingredient description, incorrect origin statement or a nutrition claim on pack.
Include photographs of the full packaging, not only the disputed phrase. Food information is often assessed in relation to the ingredients list, allergen presentation, nutrition declaration, net quantity, date mark, storage instructions and mandatory particulars. A close-up alone may prevent an officer from seeing a relevant qualification. Keep the item and packaging if doing so is safe and practical, particularly if the issue concerns a possible safety defect.
If someone may have had an allergic reaction or there is a serious immediate health concern, seek suitable medical help rather than treating a regulatory report as a substitute for care. Tell the authority about the risk and follow any instructions it gives. Do not consume more of a product simply to gather evidence. The purpose of a report is to flag a possible issue, not to prove causation through personal testing.
The Food Standards Agency provides public information about food safety, recalls and local authority responsibilities, but it does not replace the local enforcement route for every individual labelling concern. The key practical point is that a label complaint may result in investigation, advice or enforcement activity without producing a public adjudication comparable to an ASA ruling.
Know what can happen after the complaint
The ASA assesses whether a complaint falls within its remit and whether there is a potential issue under the advertising rules. Not every complaint becomes a formal published ruling. Some matters may be resolved without a ruling, and some may not be pursued where the code does not apply or the evidence does not indicate a likely breach. A decision not to investigate is not a confirmation that every claim in the advert is accurate; it can reflect remit, evidence, timing or the particular complaint submitted.
Where the ASA upholds a complaint, its usual outcome is that the ad must not appear again in the same form. The advertiser may be told not to repeat the claim unless it can be adequately substantiated, or to make the commercial nature of content clearer. The ASA does not award compensation to individual complainants and it does not generally decide private refund disputes. Those are different routes.
Food enforcement bodies have a different set of powers and processes. They may inspect, seek information, give advice, require corrective action where the law allows, or take enforcement steps. The outcome can depend on risk, evidence, the applicable legal requirement and which authority is responsible. A person reporting a matter may not receive every detail of an investigation, especially where legal, privacy or enforcement considerations apply.
Keep expectations tied to the purpose of the route. An advertising complaint aims to address a marketing communication. A labelling report aims to alert enforcement to possible non-compliance on food information. Neither is a personalised nutrition assessment, a guarantee of a refund or a substitute for medical advice.
Avoid the failure modes that weaken a complaint
The most common avoidable error is sending only a product name and saying that an advert is “misleading”. That leaves the recipient to guess which claim is at issue. Quote the relevant sentence, show the image or video frame, and identify its location. A second error is treating a customer review, editorial article or a private individual’s unpaid opinion as though it were automatically an advert. Commercial control, payment, incentives and presentation can matter, so describe the evidence you have rather than assuming the relationship.
Another failure mode is ignoring the qualification. Small print may be insufficient, unclear or contradicted by the headline claim, but it should still be included in the evidence. The assessment concerns the overall impression. Leaving out inconvenient context makes a complaint less reliable and can obscure the real issue.
Do not allege fraud, illegality or deliberate deception unless you have a factual basis and the relevant body is able to assess it. It is usually enough to say that a stated claim appears likely to mislead and to explain why. Avoid diagnosing disease, asserting that an ingredient caused a medical condition, or asking an advertising regulator to decide clinical questions about your health.
Finally, keep copies of what you submitted and any reference number supplied. If the ad changes after your report, capture the new version separately. A revised claim may be a different communication and should not be assumed to resolve the issue in the original material.
Limits of this guide
This guide concerns UK-facing food advertising and food-information complaints. It does not decide whether a particular claim breaches the law or an advertising code. It does not assess whether a food, supplement, diet or ingredient is suitable for an individual, effective for a health aim, or safe for a person with a medical condition. Those questions require appropriate clinical or professional advice.
It also does not cover private contractual disputes in detail, including delivery failures, refunds, chargebacks, subscription cancellation or damaged-goods claims. Those matters may involve the seller, payment provider or consumer-rights routes rather than an advertising or food-enforcement complaint. Nor does it explain complaint procedures outside the UK, where advertising and labelling systems may differ.
Rules, guidance and enforcement arrangements can change. The exact route may also depend on the medium, the location of the business, the nature of the food and whether the statement is promotional, mandatory label information or both. When reporting, use the current complaint channel published by the ASA or the relevant local authority, and provide the original evidence rather than relying on a summary alone.