Misleading health claims on food: what EU Regulation 1924 actually allows (and what it does not)
TL;DR
- EU Regulation (EC) No 1924/2006 is the legal backbone of every health and nutrition claim on food packaging in the European Union. It distinguishes nutrition claims (e.g. "low fat", "source of fibre") from health claims (e.g. "calcium is needed for normal bones") with strict, science-based thresholds.
- Only claims pre-authorised by the European Food Safety Authority (EFSA) can legally appear on packaging. The EU Register currently lists around 270 approved health claims out of more than 44 000 submitted: a rejection rate above 99 %.
- "Natural" is not regulated at EU level on processed food. It means whatever the manufacturer wants it to mean. The FDA position in the US is comparable but with stronger enforcement on "Made with 100% natural ingredients".
- High-profile cases (Danone Activia "scientifically proven" digestive transit, Nestlé Cerelac infant cereals) illustrate how marketing pushes the legal boundary, and how EFSA refusals slowly reshape labels.
- Five red-flag claims to watch in 2026: "boosts immunity", "detoxifies", "balances gut flora", "supports metabolism", and "anti-inflammatory" on non-medicinal foods.
If you have ever wondered why a yoghurt says "contributes to the normal function of the immune system" instead of just "boosts your immune system", the answer lies in a single piece of legislation: EU Regulation (EC) No 1924/2006. This regulation, in force since 2007 and still the reference framework in 2026, dictates which health-related sentences can appear on food packaging and which cannot. Almost everything you read on a supermarket shelf has been carefully phrased to fit (or skirt) this text.
This guide walks you through the actual rules, the real-world examples (Danone, Nestlé, Activia, Cerelac), the comparison with the US FDA framework, and the five claim categories where misleading marketing still happens frequently in 2026. The goal: give you the tools to read labels critically, not the marketing slogan.
1. The legal architecture: Regulation 1924/2006 in plain language
EU Regulation 1924/2006 (often written "EC 1924/2006") applies to any commercial communication about food in the EU: packaging, advertising, websites, point-of-sale materials. It creates two main legal categories.
Nutrition claims
Statements about what a food contains (or does not contain) in terms of energy or nutrients.
- Examples: "low fat", "no added sugar", "source of fibre", "rich in vitamin C", "reduced salt".
- Strict thresholds defined in the Annex. For instance, "low fat" requires less than 3 g of fat per 100 g for solid food, or less than 1,5 g per 100 ml for liquid food. "Source of fibre" requires at least 3 g per 100 g (or 1,5 g per 100 kcal). "Sugar free" requires less than 0,5 g of sugar per 100 g or 100 ml.
- These thresholds are non-negotiable. A product cannot claim "low fat" if it contains 4 g per 100 g, even if competitors typically have 10 g.
Health claims
Statements that imply a beneficial effect on health: physiological function, mental well-being, reduction of disease risk, growth and development.
- Examples: "calcium is needed for the maintenance of normal bones", "vitamin C contributes to the normal function of the immune system", "plant sterols help reduce blood cholesterol".
- Must be pre-authorised by EFSA and published in the EU Register of Nutrition and Health Claims (publicly accessible at ec.europa.eu).
- Two subcategories:
- Article 13 claims (general function claims): based on generally accepted scientific evidence.
- Article 14 claims: reduction of disease risk claims and claims relating to children's development and health (much stricter authorisation process).
What is forbidden
Article 3 of the regulation explicitly prohibits claims that:
- Are false, ambiguous or misleading.
- Encourage excessive consumption of a food.
- Suggest a balanced diet cannot provide enough nutrients (a classic for supplement marketing).
- Refer to changes in body functions in alarming terms.
- Suggest that not eating the food could affect health.
In theory, this should rule out about 80 % of supplement and "wellness food" advertising you see on Instagram. In practice, enforcement varies dramatically between Member States.
2. The EFSA evaluation process: why 99 % of submitted claims are rejected
When the regulation came into force in 2007, manufacturers submitted more than 44 000 health claims to be evaluated. The European Food Safety Authority's NDA (Nutrition, Dietetics and Allergies) Panel reviewed each one against three criteria:
- The food or food constituent must be sufficiently characterised.
- The claimed effect must be defined precisely (not vague terms like "supports wellness").
- There must be sufficient scientific evidence (controlled clinical trials, mechanism of action).
Result: roughly 270 health claims were authorised, the rest were rejected. The full list is in the EU Register and includes mostly claims tied to specific vitamins and minerals (vitamin C, vitamin D, calcium, iron, zinc, magnesium) and a handful of food components (plant sterols, beta-glucans of oats, monacolin K, etc.).
What was massively rejected:
- Probiotics: every health claim on probiotics (including the famous Activia "digestive transit" claim) was rejected by EFSA between 2009 and 2012. This is why you cannot find "probiotic" with a health claim on EU yoghurts anymore.
- Antioxidants: most "antioxidant" health claims were rejected for lack of clinical evidence at the food matrix level.
- Superfoods: claims on goji berries, chia seeds, spirulina were systematically rejected unless they fall under a generic vitamin or mineral claim.
- Honey: claims about "boosting immunity" were rejected.
- Manuka honey: claims about antibacterial properties were rejected for food packaging (different framework for cosmetics).
This is the core paradox: the science available in the public domain is much weaker than the marketing departments would like. EFSA holds the line and refuses most claims, but marketing language quickly adapts by using non-claim-controlled phrasing.
3. The Activia case: a textbook EFSA refusal
Activia (Danone) is the canonical case study taught in EU food law courses.
The original claim
From 2002 to 2010, Activia yoghurts (containing Bifidobacterium animalis lactis DN-173 010, branded as Bifidus ActiRegularis) were advertised across Europe with claims such as:
- "Scientifically proven to help slow intestinal transit"
- "Restores your digestive comfort in 14 days"
What EFSA said
In April 2010, EFSA's NDA Panel issued an unfavourable opinion (EFSA-Q-2008-285): the studies submitted did not establish a cause-and-effect relationship between consumption of B. animalis lactis DN-173 010 and a beneficial physiological effect related to intestinal transit time.
In 2014, Danone officially withdrew the health claim from European packaging. The product still exists, but the packaging now says variants like "Pour le confort digestif" (for digestive comfort) in France or simply describes the strain without claiming a health benefit. This is the post-1924 reality: products survive, but marketing language is heavily constrained.
What it teaches us
Health claims are not refused because the product is dangerous: they are refused because the scientific evidence does not meet the EFSA standard. The product can still be marketed, but only with carefully worded sensory or compositional language. If you see a yoghurt today claiming "supports your gut", read the small print: it is almost certainly a vitamin claim borrowed from added vitamin B or D, not a probiotic claim.
4. The Cerelac case and the WHO concern on infant foods
Nestlé Cerelac infant cereals became a different kind of case study in 2024 when an investigation by the Swiss NGO Public Eye and IBFAN revealed that Nestlé added sugar to Cerelac products sold in low and middle-income countries, while marketing the same brand as sugar-free in Switzerland and Western Europe.
This is not strictly an EU 1924/2006 issue (the regulation applies only within the EU), but it illustrates the moral grey area of food labelling globally:
- In Geneva: Cerelac for 6-month-old babies, 0 g of added sugar.
- In India, Senegal, Nigeria: same brand, up to 6 g of added sugar per serving.
- WHO recommends no added sugar for children under 2 years. Marketing of "Cerelac" as a healthy weaning food despite added sugar was condemned as misleading by WHO and several health agencies.
Nestlé pledged to revise formulations following the investigation. The EU Regulation 1924/2006 does have specific provisions for food intended for infants and young children (Article 14, plus separate Regulation EU No 609/2013 on food for specific groups), which is precisely why the EU formulations were already sugar-free. Outside the EU, no equivalent enforcement exists, hence the double standard.
5. "Natural", "artisanal", "traditional": the unregulated terms
Some words you see on food packaging are not defined or regulated at EU level. This is the most fertile ground for misleading marketing.
"Natural"
- Not regulated by Regulation 1924/2006 for processed food.
- Only "natural flavouring" is regulated: under Regulation (EC) No 1334/2008, a "natural flavouring" must contain at least 95 % flavouring components from the named natural source.
- Beyond that, "natural" on a product (e.g. "natural mineral water", "natural ingredients", "natural goodness") can mean almost anything. Manufacturers self-regulate via their internal guidelines.
- Tip: ignore the word "natural" on processed food. Look at the ingredient list and the NOVA classification instead.
"Artisanal", "traditional", "homemade-style"
- Not regulated at EU level.
- France has tighter national rules for specific products: "artisan boulanger" requires the entire production cycle to happen on-site, not just baking thawed dough. But "biscuit artisanal" on an industrial cookie is allowed.
- Tip: these terms have no nutritional meaning. They are aesthetic.
"Pure"
- Not regulated in general food law.
- The Codex Alimentarius requires "100 % pure" honey to be just honey (no added syrup), but enforcement varies. The European honey adulteration scandal of 2023 (multiple Chinese imports found adulterated with sugar syrup) showed how weak enforcement remains.
"Made in France" or "Origin France"
- Regulated by Regulation EU 1169/2011 (food information to consumers) for specific products (meat, fresh produce, olive oil, wine).
- For processed food, origin labelling is only mandatory if its absence would mislead. This leaves significant grey areas.
6. The five red-flag claims still abused in 2026
Despite Regulation 1924/2006, these five claim categories continue to push the legal boundary in 2026, especially on supplements, functional foods, and "wellness" products.
1. "Boosts immunity" / "supports immune defence"
- The only authorised immunity claims by EFSA refer to specific nutrients: vitamin C, vitamin D, zinc, copper, folate, iron, selenium ("contributes to the normal function of the immune system").
- "Boosts" is not a legal verb. EFSA refuses any claim suggesting an increase or enhancement of immune function.
- Reality: a product with a tiny dose of vitamin C can legally say "contributes to the normal function of the immune system" because the vitamin C claim exists. The marketing implies the entire product is immune-boosting, but only the vitamin is legally relevant.
2. "Detox" / "detoxifies"
- Strictly prohibited as a health claim. EFSA has rejected every detox claim ever submitted.
- Reality: products marketed as "detox teas", "detox juices", "detox cures" technically violate the regulation unless they avoid any explicit claim. Marketing departments use stylistic workarounds (poetic language, lifestyle imagery) that legally fall in the grey zone.
- Scientific position: the human body detoxifies itself through the liver, kidneys, lungs, skin. There is no scientific evidence that any food can specifically "detoxify" the body. ANSES and EFSA have both stated this in public communications.
3. "Balances your gut flora" / "supports gut health"
- After the Activia case (2010), no probiotic-related claims are authorised in the EU. The very word "probiotic" cannot be used on packaging as a claim.
- Workaround used by manufacturers: list the bacteria scientifically (e.g. "Lactobacillus rhamnosus") and use vague descriptions ("for your daily wellness").
- Tip: do not pay extra for "probiotic" yoghurts unless your healthcare provider specifically recommends them. The science on commercial strains is much weaker than the marketing suggests.
4. "Supports metabolism" / "burns fat" / "speeds up metabolism"
- Prohibited as a slimming claim under Article 12 of Regulation 1924/2006: claims about the rate or amount of weight loss are explicitly forbidden.
- Workaround: products use phrasings tied to authorised claims on specific nutrients (e.g. "vitamin B6 contributes to normal energy-yielding metabolism") and let the consumer infer fat-burning.
- Reality: no food or supplement reliably speeds up metabolism in a clinically meaningful way. Caffeine and capsaicin have very minor short-term thermogenic effects, but the impact on weight loss is negligible.
5. "Anti-inflammatory"
- Not an authorised health claim for any non-medicinal food in the EU.
- Workaround: omega-3 EPA/DHA claims authorised by EFSA refer to "normal function of the heart" and "normal vision", not inflammation. Curcumin claims are systematically rejected.
- Reality: the term "anti-inflammatory" remains a marketing favourite for turmeric, ginger, omega-3, berries. The clinical effects on chronic inflammation are documented in research but not at food doses. You would need pharmacological doses far above culinary consumption to see meaningful effects.
7. EU vs FDA: how the US compares
The United States has a different framework, defined by the Federal Food, Drug, and Cosmetic Act and enforced by the FDA. The main differences:
Structure / function claims
The FDA allows "structure / function claims" on supplements and conventional foods without pre-approval, provided:
- The claim describes the role of a nutrient or ingredient in maintaining normal structure or function of the body.
- A disclaimer is included: "This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease."
This is much more permissive than the EU system. In the US, you can legally write "supports healthy joints" on a supplement without EFSA-style pre-approval, as long as you include the disclaimer.
Health claims (FDA-authorised)
The FDA pre-authorises health claims linking specific nutrients to disease risk reduction (similar to EU Article 14 claims). Examples: "diets low in sodium may reduce the risk of high blood pressure", "calcium may reduce the risk of osteoporosis".
- Currently around 13 authorised health claims (much fewer than the EU).
"Qualified health claims"
A unique FDA category: claims with limited scientific evidence can be authorised with a qualifier (e.g. "very limited and preliminary scientific research suggests..."). This category does not exist in the EU.
"Natural"
- The FDA has issued guidance saying "natural" should mean no artificial colors, artificial flavors, or synthetic substances, but the term is not formally defined in regulation.
- Enforcement is weak: numerous class action lawsuits have been brought against US manufacturers using "all natural" claims on products containing high-fructose corn syrup or GMO ingredients.
Comparative summary
| Topic | EU (1924/2006) | US (FDA) |
|---|---|---|
| Pre-approval of health claims | Mandatory via EFSA | Mandatory for "health claims", not for structure/function |
| "Detox" claims | Forbidden | Allowed if structure/function |
| Probiotic claims | Forbidden | Allowed with structure/function disclaimer |
| "Natural" | Undefined in regulation | Loose FDA guidance, no formal definition |
| Supplement claims | Heavily restricted | Permissive with disclaimer |
| Enforcement | Member State competent authority + ECC | FDA + FTC for advertising |
Bottom line: the EU is significantly stricter on health claims than the US. A claim banned in the EU is often legal in the US, which is why imported US supplements (via Amazon, iHerb) often carry stronger-sounding claims than their European counterparts. This does not mean the underlying science is stronger: it means the regulatory bar is lower.
8. How to read a label critically in 2026
Five reflexes to develop:
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Look at the ingredient list, not the front of the pack. The marketing claim is on the front. The truth is on the back. If the first three ingredients are sugar, refined flour, palm oil: the health claim about vitamin D will not save the product.
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Check the NOVA classification. A "natural", "organic", "high in protein" product can still be ultra-processed. NOVA group 4 (ultra-processed) is the strongest health predictor in modern nutrition research (BMJ, 2019 and 2022 cohort studies).
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Be sceptical of any vague verb. "Supports", "promotes", "balances", "boosts" with no specific physiological mechanism are usually marketing fillers. Authorised claims always specify the nutrient and the function ("vitamin C contributes to..." is precise; "boosts your immunity" is fluff).
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Search the EU Register. Every authorised health claim is searchable at ec.europa.eu/food/safety/labelling-nutrition/claims/register/public. If a claim is not in the register, it is either rejected or unauthorised.
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Cross-check with ANSES, EFSA, WHO. Independent agency websites contain plain-language explanations and rejected claim summaries. Their position is generally more conservative than industry communication, and closer to peer-reviewed science.
FAQ on EU health claims
Why can supplement brands still say "boosts immunity" on social media if it is forbidden on packaging?
Enforcement of Regulation 1924/2006 on digital advertising and influencer content has historically been weak. Each EU Member State delegates enforcement to its competent authority (DGCCRF in France, AGCM in Italy, etc.) and resources are limited. Since 2022, the EU Digital Services Act and national consumer protection bodies have stepped up scrutiny of influencer marketing, but the scale of social media content far outpaces regulatory bandwidth. The legal rules apply to all commercial communication, but enforcement on Instagram and TikTok lags well behind packaging enforcement.
Are "superfoods" labels regulated?
"Superfood" is not a regulated category at EU level. Any food can be marketed as a superfood as long as no specific health claim accompanies the term. This is why goji berries, açaí, spirulina, chia seeds are sold as superfoods even though every specific health claim submitted by manufacturers to EFSA was rejected. The term itself is allowed because it does not constitute a health claim under Article 2 of Regulation 1924/2006.
Can a food be labelled "high in protein" if it contains very little protein in absolute terms?
Yes, in some cases. The threshold for "high in protein" under EU rules is that at least 20 % of the energy value of the product comes from protein. A product with very little protein per portion can still meet this threshold if it is also very low in fat and carbohydrates. This is why some snack bars with only 8 to 10 g of protein per bar can legally claim "high in protein". Always check the actual gram amount per portion, not just the front-of-pack claim.
What is the difference between a "health claim" and a "medicinal claim"?
A health claim under Regulation 1924/2006 refers to maintaining or improving normal physiological function (e.g. "vitamin D contributes to normal bone health"). A medicinal claim would refer to treating, curing or preventing a disease, which is strictly forbidden on food and only allowed on authorised medicinal products under Directive 2001/83/EC. The boundary is sometimes blurred (e.g. plant sterols and cholesterol reduction is an authorised health claim, but mentioning cardiovascular disease is closer to a medicinal claim). Manufacturers have to navigate this line carefully.
Are imported food products from outside the EU subject to the same rules?
Yes. Any food marketed in the EU, regardless of origin, must comply with Regulation 1924/2006 on its packaging and advertising. Imported supplements and foods from the US, UK or Asia sometimes display claims that are not authorised in the EU. These claims must be corrected before market entry, but enforcement on small-volume e-commerce imports (Amazon, iHerb direct shipping) is limited in practice. Consumers buying directly from foreign websites are effectively outside the EU consumer protection framework.
NutriDecrypte verdict
EU Regulation 1924/2006 is one of the strictest food labelling frameworks in the world, far stricter than the US FDA or most Asian regulatory bodies. EFSA has rejected more than 99 % of submitted health claims, which is a strong signal that the available science on functional foods, probiotics, antioxidants and superfoods is much weaker than industry claims suggest.
However, the regulation has three structural limits:
- Enforcement varies dramatically between Member States and between formats (packaging is policed, social media less so).
- Many terms remain unregulated ("natural", "artisanal", "pure", "superfood"), leaving fertile ground for marketing.
- Authorised claims can mask weak products: a single ingredient (vitamin C, calcium) can carry a claim that makes the entire product look healthy, regardless of its overall composition.
The practical conclusion: labels are a tool, not the truth. Read the ingredient list. Check the NOVA classification. Search the EU Register if a claim seems too strong. Be especially sceptical of products targeting children, pregnant women, athletes, and anyone seeking health gains beyond a balanced diet. The strongest health predictor remains a simple one: minimally processed, plant-rich, varied. No regulation needed.
NutriDecrypte cross-references EU authorised claims, NOVA classification, and more than 230 product data points to give an honest, evidence-based score on each food product. Because the front of the pack is only half the story.