I just came across this interesting chart, but I wasn't entirely convinced it was 100% accurate.
Here is the response from the free version of ChatGPT; it would be interesting to see the responses from other LLMs for comparison.
In 100 words, tell me which
countries have a national law
making it illegal for public
institutions not to include a
vegetarian meal option on
their menu?
gemini free version:Grok4
Is Grok4 avoiding France? hahahaha
Probably
ChatGPT team version:
As far as I know, the only country with a national law explicitly obliging public institutions to offer a vegetarian (strictly plant-based) meal option is Portugal. ProVeg International +2 NYC Food Policy Center (Hunter College)+2
Other countries — such as France and Israel — require occasional meat-free meals in school canteens (e.g. at least one per week) rather than a mandatory vegetarian/vegan option at every institution. Wikipedia +1