
Nano and food

Dossier: Nanos in food
By the AVICENN team – Last modification January 2023
In 2020, ANSES had identified more than 900 food products in which the presence of nanos is proven (the figure rises to 4,300 products including those where the presence of nanos can only be suspected). These nanos added in foodstuffs are mainly intended to improve the appearance of food (color, texture), to modify the stability or fluidity of products in powder form or to increase the bioavailability of certain nutrients.
At the end a long collective work involving NGOs supported by AVICENN, the additive E171 (containing nanoparticles of titanium dioxide) was banned in food in France in 2020, then in all Europe in 2022.
However, if there is a European regulation for nanomaterials in food, everything is still far from being under control, especially because of insufficient traceability (the r-nano register does not identify finished products containing nanomaterials).
The various product tests carried out by associations or the fraud control department (DGCCRF) reveal the extent of the problem: very few nanos are labeled. Worse, some of them could be widely used and “off the radar” because they are covered by the labeling exemption for “technological adjuvants”.
Who benefits from nanos in food, what are the risks for our health, what recommendations have been issued, what are the current or future initiatives in the field? Discover our information sheets that we will complete and update as knowledge evolves: your contributions are welcome!
Other news on the topic
Upcoming Nano Agenda



- Workshop on risk assessment of nanomaterials and materials containing small/nanoparticles in the food and feed chain
- Organizer: EFSA
- This workshop will present the proposed strategy for updating the EFSA Nano Guidance documents, aiming to merge them into a single guidance on risk assessment for nanomaterials and small/nanoparticles in the food and feed chain.
The event will provide an open platform for discussing key issues, approaches to addressing them, and ensuring the guidance reflects the latest scientific knowledge. Stakeholders will be encouraged to share experiences and engage with regulators, helping shape the updated guidance. - Website: www.efsa.europa.eu/en/events/workshop-risk-assessment-nanomaterials-and-materials-containing-smallnanoparticles-food-and
- This course is designed for engineers or senior technicians working in the field of micro and nanotechnologies in public or industrial laboratories, who need to solve problems related to controlling the properties of materials at the nanometric scale during their development and/or integration into devices.
- Organizers: INSTN Grenoble (CEA)
- June 17 to July 3, 2025
- Website: https: //instn.cea.fr/formation/nano-caracterisation-pour-letude-des-materiaux-et-structures

- Joint Regulatory Risk Assessors Summit
- Organizers: the Horizon Europe projects ACCORDs, iCare, MACRAMÉ, and nanoPASS
- Object: Addressing the needs of industry and regulators in assessing the safety and sustainability of advanced materials
- Location: OECD
- Website: https://icareproject.eu/…advanced-materials
Any questions or comments? This information sheet compiled by AVICENN is intended to be completed and updated. Please feel free to contribute.
This file was originally created in May 2013.