Organic food supplements and pesticide residues
What EU organic certification guarantees, what it does not, and why a multivitamin cannot be organic

An “organic” claim on a food supplement does not mean “zero pesticides”, and it is not a separate, stricter or looser residue limit. Organic and conventional food are subject to the same maximum residue levels (MRLs) under Regulation (EC) No 396/2005. Regulation (EU) 2018/848 governs something else: the production method, precautionary measures and a mandatory investigation when a substance not authorised in organic farming turns up in an organic product. For supplements there is one more boundary that is often missed: a product with added vitamins or minerals cannot, as a rule, be sold as organic.

1. Short answer

• MRLs are shared. EFSA’s report for 2022 says it plainly: no specific MRLs are established for organic products; the limits in Regulation 396/2005 apply equally to organic and conventional food.
• Detecting a non-authorised substance in organic produce does not automatically remove organic status. It triggers an official investigation (Art. 29 of Regulation 2018/848). Organic status is lost where active use, missing precautionary measures or disregard of earlier requests is established (Art. 29(2)).
• A vitamin and mineral supplement cannot be organic. Annex II Part IV point 2.2.2(f) allows vitamins and minerals in processed organic food only where their addition is directly legally required, or in foods covered by Regulation 609/2013. Food supplements are in neither category.
• A botanical supplement can be organic if at least 95% by weight of its agricultural ingredients are organic and the other processing rules are met (Art. 30(5)(a)).

2. What the data show: exposure falls, but that is not a health outcome

The strongest evidence concerns exposure, not disease. In the randomised trial by Rempelos et al. (American Journal of Clinical Nutrition, 2022), 27 healthy adults ate a Mediterranean diet for two weeks made either entirely from organic or entirely from conventional food. Total urinary pesticide residue excretion averaged 17 µg/day in the organic group versus 180 µg/day in the conventional group (−91%). The reduction was uneven: 95% for chlormequat, 72% for organophosphate insecticides, 53% for pyrethroids and 26% for herbicides. In the conventional group, switching from a Western to a Mediterranean diet (more fruit and vegetables) raised insecticide excretion from 7 to 25 µg/day.

An earlier, smaller crossover study by Oates et al. (Environmental Research, 2014; 13 adults, a diet at least 80% organic for 7 days) found mean urinary dialkylphosphate (DAP) metabolites 89% lower: 0.032 versus 0.294 µg/L. The meta-analysis by Barański et al. (British Journal of Nutrition, 2014; 343 publications) reported detectable pesticide residues four times more often in conventional than in organic crops (46% versus 11%) and mean cadmium concentrations 48% lower in organic crops. The confidence interval for cadmium was wide (−112% to +16% for the mean percentage difference), so the figure is an estimate, not a constant.

Official EU monitoring points the same way. In EFSA’s report for 2022 (110,829 samples, 6,717 of them labelled organic), 79.0% of organic samples had no quantifiable residues versus 59.0% of all samples. MRLs were exceeded in 2.4% of organic samples and 3.7% of all samples; after measurement uncertainty, 1.4% versus 2.2% were non-compliant. Most organic exceedances concerned copper, which is authorised in organic farming and also has other sources (feed, fertilisers), mainly in buckwheat and other pseudo-cereals. According to the Commission’s March 2026 report, in 2023 80% of 7,074 organic samples had no quantifiable residues and 0.9% exceeded the MRL.

3. Same MRLs for organic and conventional: what it means for a supplement

Regulation 396/2005 sets MRLs for products listed in Annex I (fruit, vegetables, cereals, teas, spices, herbal infusions and others). Where no specific limit exists for a substance–product combination, a default of 0.01 mg/kg applies (Art. 18(1)(b)). A food supplement as such has no MRLs of its own. For processed and composite products, Art. 20 requires the applicable level to be derived from the raw commodity MRL, taking account of concentration changes caused by processing (processing factors). Drying herbs or concentrating an extract raises residue concentration per unit mass, so the producer should know the factor for its process and be able to justify it. Since October 2018 EFSA has published a database of indicative processing factors.

Organic certification neither waives this duty nor raises the limit. An extract from organic raw material that exceeds the MRL is non-compliant with food law just like a conventional one. Conversely, a conventional product with residues below the MRL is fully compliant, even if it contains substances not authorised in organic farming.

4. A residue in an organic product: Arts 28–29 and the official investigation

Art. 28 requires every organic operator to identify contamination risks, take preventive measures and review them regularly at every stage: production, preparation and distribution. If an operator suspects a non-authorised substance, it must identify and separate the product, check the suspicion, not sell it as organic until resolved, and inform the control body where the suspicion is substantiated or cannot be eliminated (Art. 28(2)).

When the authority or control body receives substantiated information about such presence, or detects it itself, Art. 29(1) requires an immediate official investigation to determine the source and cause, and a provisional ban on selling the product as organic until it is completed. The methodology is set by Art. 2 of Implementing Regulation 2021/279. The operator may comment on the findings (Art. 29(3)), and for official samples it has the right to a second expert opinion under Art. 35 of Regulation 2017/625.

Commission report COM(2026) 142 final of 31 March 2026 summarises how this works in practice. Even for substances that may occur naturally or come from environmental contamination, that source cannot be presumed; intentional use must be ruled out. An EFSA study cited in the report found, for the 21 most frequently notified substances, a probability of occurrence in organic products of 0.04% to 3.95%, against 0.18% to 17.5% in non-organic products.

The most frequent cause was spray drift from neighbouring fields (24.1%). Missing precautionary measures were found in 16.7% of cases and use of a non-authorised substance in 15.9%. In 14.9% the cause could not be identified. 66.2% of detections occurred at production, 10.2% at preparation, 9.5% at storage and 3.3% at import. For a supplement producer buying dried herbs or extracts, the key figure is that in 10.6% of cases contamination arose at an earlier stage of the chain. Supplier documentation and incoming-goods testing are then the only evidence that Art. 28 precautions were taken.

National thresholds: Belgium, Italy, Romania, Slovenia

Art. 29(5) lets Member States that had thresholds before 2018, above which a product cannot be organic, keep them for their own production only. According to the Commission report: Italy applies a general threshold of 0.01 mg/kg (temporarily higher for phosphonic acid) regardless of whether contamination was intentional; Romania 0.01 mg/kg; Wallonia 1.5 times the limit of determination under Regulation 396/2005; Slovenia the method’s limit of quantification taking measurement uncertainty into account. These thresholds do not apply to organic products from other Member States. Elsewhere, including Poland and Germany, the outcome of the investigation decides, not the detected level alone.

5. Vitamins, minerals and “organic”: why a multivitamin cannot be organic

Annex II Part IV point 2.2.2(f) of Regulation 2018/848 allows minerals, vitamins, amino acids and micronutrients in organic food processing only where (i) their use in food for normal consumption is directly legally required, so that the food cannot be placed on the market at all without them, or (ii) in food covered by Art. 1(1)(a) and (b) of Regulation 609/2013 (infant and young-child food, food for special medical purposes) or Directive 2006/125/EC. The “directly required” wording follows the CJEU judgment of 5 November 2014 in C-137/13 Herbaria Kräuterparadies, concerning a herbal drink with added ferrous gluconate and vitamins. The Court held expressly that such use is not “legally required” where the food is marketed as a food supplement, with a nutrition or health claim, even if Directive 2002/46/EC, Regulation 1924/2006 or Regulation 432/2012 require a certain amount of the nutrient for that status or claim.

A food supplement meets neither condition: no rule requires a vitamin to be added for a supplement to be sold, and supplements are not Regulation 609/2013 foods. The Commission’s FAQ on organic rules states that food supplements produced from vitamins and minerals fall outside the organic legislation and cannot be labelled organic. In its Grand Chamber judgment of 4 October 2024 in C-240/23 Herbaria Kräuterparadies II, the CJEU held that neither the EU logo nor, in principle, organic terms may be used for processed food imported from a third country that contains minerals and vitamins of non-plant origin, even if certified under equivalence. Only the third country’s own organic logo remains permissible.

Practical note: agricultural ingredients not available in organic form and certain additives and processing aids may be used only within Implementing Regulation (EU) 2021/1165. Check the capsule shell, carrier and anti-caking agents with your control body before designing the label.

6. Imported raw materials and EU–third-country differences

Regulation 1107/2009 contains hazard-based exclusion criteria: an active substance is not approved where, among other things, it is classified as mutagenic, carcinogenic or toxic for reproduction category 1A or 1B, or has endocrine-disrupting properties (Annex II points 3.6.2–3.6.5), with narrow exceptions. Two examples show what this means for raw materials:

• Chlorpyrifos. The Commission did not renew its approval (Implementing Regulation 2020/18) after EFSA’s 2019 statement identified unresolved genotoxicity concerns and effects on neurodevelopment. Regulation 2020/1085 lowered the MRLs for chlorpyrifos and chlorpyrifos-methyl to the limit of determination (generally 0.01 mg/kg). That limit also applies to imports, whether or not the substance is permitted in the country of origin.
• Paraquat. By judgment of 11 July 2007 in T-229/04 Sweden v Commission, the Court of First Instance annulled Directive 2003/112/EC, which had included paraquat as an active substance, notably because the health risk assessment was insufficient.

For a supplement importer this is the crux. The status of a substance in the country of origin is irrelevant in the EU: what counts is the EU MRL for the raw commodity and, for non-approved substances, usually the limit of determination. The risk is greatest for dried herbs, spices and extracts from third countries, where concentration during processing multiplies residue levels. The 2020 ethylene oxide crisis is a reminder: EFSA’s 2022 report still lists a non-compliant sample of food supplements from India containing ethylene oxide in import controls.

7. Marketing: “pesticide-free” and health claims

Organic status describes the production method, not a health effect. It does not unlock health claims; those need Regulation 1924/2006 and an authorised entry (e.g. Regulation 432/2012). “Pesticide-free” or “0% residues” is risky for two reasons: analysis only shows the absence of residues above the limit of quantification, and suggesting a special characteristic that all compliant products share (respecting MRLs) breaches Art. 7(1)(c) of Regulation 1169/2011. It is safer to state facts: the certificate, the control body code, the origin of the raw material.

8. Checklist for producers and importers of organic supplements

1. Formula. Check whether it contains added vitamins, minerals, amino acids or other micronutrients. If so, do not design a label with “organic” in the name or with the EU logo.
2. 95% threshold. Calculate the share of organic agricultural ingredients under Annex II Part IV point 2.2.4. Below 95%, “organic” only in the ingredients list.
3. Excipients. Verify the shell, carrier and additives against Regulation 2021/1165 and with your control body.
4. Supplier. Require the organic certificate, the certificate of inspection (TRACES) for imports, and residue test results for the batch.
5. Incoming testing. Run a broad multi-residue panel for dried herbs and extracts; know the processing factor and raw-commodity MRL (Art. 20 of Regulation 396/2005).
6. Detection procedure. Write the Art. 28(2) steps into your quality system: separate, verify, stop organic sales, notify the control body.
7. Communication. No “pesticide-free” and no health claims outside the EU register.

FAQ

Does organic food have lower pesticide MRLs?

No. MRLs under Regulation 396/2005 are the same for organic and conventional food. The difference lies in the production method and in the duty to investigate when a non-authorised substance appears in an organic product.

Does a residue below the MRL in an organic supplement mean loss of status?

Not automatically. It triggers an Art. 29 investigation and a provisional ban on organic sale. Status is lost where use of a non-authorised substance, missing precautions or disregard of earlier requests is established. The exceptions are national thresholds in Belgium (Wallonia), Italy, Romania and Slovenia, applied only to their own production.

Can a vitamin D supplement be organic?

Not if the vitamin is added. Annex II Part IV point 2.2.2(f) of Regulation 2018/848 allows added vitamins only where directly legally required or in Regulation 609/2013 foods. CJEU judgments C-137/13 and C-240/23 confirm this.

Can a herbal supplement carry the EU organic logo?

Yes, if at least 95% by weight of its agricultural ingredients are organic, it meets the processing rules and it is certified by a control body.

Do lower-exposure data support health claims?

No. The studies measured urinary metabolites, not health outcomes, and health claims require authorisation under Regulation 1924/2006.

Glossary

MRL

Maximum residue level of a pesticide in food or feed under Regulation 396/2005.

Non-authorised substance in organic production

A product or substance not authorised under Art. 9(3) of Regulation 2018/848 (lists in Regulation 2021/1165).

Official investigation

The procedure under Art. 29(1)(a) of Regulation 2018/848 to determine the source and cause of a non-authorised substance.

Processing factor

Ratio of residue concentration in the processed product to that in the raw commodity (Art. 20 of Regulation 396/2005).

Conclusion

The science is consistent on exposure: an organic diet clearly lowers urinary pesticide residues, and organic products less often contain quantifiable residues. There is no evidence that this translates into less disease, and there are no separate MRLs for organic food. For the supplement sector the law draws three practical lines: the same MRLs for everyone, an investigation rather than automatic disqualification on detection, and no organic labelling for products with added vitamins and minerals. A botanical supplement can be organic if its supply chain is documented and tested.

Primary sources

1. Regulation (EU) 2018/848 on organic production: Arts 16, 28, 29, 30, 32, 33; Annex II Part IV pt 2.2.2(f).
2. Implementing Regulation (EU) 2021/279: Art. 2 (methodology of official investigation).
3. Implementing Regulation (EU) 2021/1165: lists of products and substances authorised in organic production.
4. Regulation (EC) No 396/2005: Art. 18(1)(b), Art. 20.
5. Regulation (EC) No 1107/2009: Annex II pt 3.6.
6. Implementing Regulation (EU) 2020/18 (chlorpyrifos) and Regulation (EU) 2020/1085 (MRLs).
7. EFSA (2019), Statement on the available outcomes of the human health assessment … chlorpyrifos, EFSA Journal 17(8):5809.
8. Judgment of 11.7.2007, T-229/04 Sweden v Commission (paraquat).
9. CJEU judgment of 5.11.2014, C-137/13 Herbaria Kräuterparadies.
10. CJEU (Grand Chamber) judgment of 4.10.2024, C-240/23 Herbaria Kräuterparadies II.
11. European Commission, COM(2026) 142 final: report on the implementation of Art. 29 of Regulation 2018/848 (31.3.2026).
12. EFSA (2024), The 2022 European Union report on pesticide residues in food, EFSA Journal 22:e8753.
13. Rempelos L. et al. (2022), Am J Clin Nutr 115(2):364–377 (NCT03254537).
14. Oates L. et al. (2014), Environmental Research 132:105–111.
15. Barański M. et al. (2014), British Journal of Nutrition 112:794–811.

Related: Sampling for pesticide residues in food supplements (Regulation 2026/765).