Back-to-School 2025 Health Trend: This Food Banned in 8 School Cafeterias

At the start of the new school year, a bold decision for children’s health is being made. Eight major cities, including Paris, Lyon, Lille, Grenoble, Montpellier, and Rennes, have decided to remove tuna from school cafeteria menus. A radical move, justified by the presence of mercury in canned tuna.

Indeed, NGOs such as Bloom and Foodwatch analyzed 148 cans of tuna and found that more than half exceeded the threshold of 0.3 mg/kg, while European regulations allow up to 1 mg/kg for fresh tuna. This translates to about 2.7 mg/kg in canned tuna. Alarming figures, especially for children.

Facing this finding, several municipalities chose to apply the precautionary principle, deeming the current standards insufficiently protective for the youngest. Even though manufacturers defend the compliance of their products, concern remains. Here’s a look at this unprecedented measure!

Behind the ban: principles, safeguards, and controversies

The cities involved contend that the tuna threshold, much higher than for other fish, remains insufficient in light of health concerns. Moreover, mercury is listed by the World Health Organization among the ten most dangerous chemicals. It can have serious effects on children’s neurological development, such as a lowering of IQ or behavioral problems.

This move has sparked debate: associations hail it as common-sense, while industry professionals condemn it as an excessive constraint. They point to NGO methodologies. Additionally, they insist that their internal controls show mercury levels far lower.


What are the consequences for school cafeterias?

Concretely, this decision reshapes the school menus for thousands of students. Fish-based meals must be redesigned each week, with viable alternatives. This requires the school catering services to adjust logistics: new suppliers, recipe changes, communications to parents, etc.

On the side of families, the reaction is broadly positive: many parents are relieved to know that school meals now prioritize safety. Some also welcome that this decision could weigh in on a revision of European standards.


Une rentrée 2025 sous le signe de la santé : cet aliment est désormais banni de huit cantines

This 2025 school year marks an unprecedented stance. In the face of a troubling level of contamination, several major cities did not hesitate to ban tuna from cafeterias. They broke away from existing norms to prioritize children’s health. While the industry asserts that it complies with the rules in place… Local mobilization highlights a gap: current thresholds are not considered protective enough.

The future of this measure now hinges on changes to European regulations. In the meantime, these municipalities are determined to protect kids above all!

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Karla Miller

Karla Miller

founder and editor of this lifestyle media. Passionate about storytelling, trends, and all things beautiful, I created this space to share what inspires me every day. Here, you’ll find my curated take on style, wellness, culture, and the art of living well.