The EU imposes the most stringent standards in the world on its farmers and industrialists.

Omissions

• The claim is a political/rhetorical superlative ('the most stringent in the world') rather than a measurable statistic; no single comparative index ranks the EU first across all sectors (agriculture AND industry) simultaneously.
• The European Commission's own official wording is 'one of the highest food safety standards in the world' — deliberately a 'one of the highest' framing, not 'the highest', which weakens the absolute superlative.
• Independent indices (e.g. Economist Impact Global Food Security Index) rank individual European countries such as Finland, Ireland and Norway at the top for food safety standards, but this is a country-level, not an EU-wide, ranking and does not cover industrial standards.

Sources

• PrimaryEuropean Commission — Food safety (official)"The EU has one of the highest food safety standards in the world, which ensures that food is safe for consumers."
• SecondaryANSI (American National Standards Institute) — Blog"Europe generally adopts a more precautionary, stricter approach to food safety and ingredient approval, while the US tends to favor a more risk-based system... Food labeling in the EU is stricter and more transparent."
• SecondaryECIPE — Grumbling in the Fields: EU Agriculture and Trade"European farmers claim that they face unfair import competition. They argue that European rules that regulate the production of food are stricter than international practices, putting them in disadvantage."
• SecondaryFoodDocs — Food Safety Standards: A Comparison of USA, UK, Canada, Australia"As of 2022 (the most recent report), Finland, Ireland, and Norway rank top three according to having the most favorable food safety standards." (based on Economist Impact Global Food Security Index)