Gap between national food production and food-based dietary guidance (2025) | Hacker News

Hacker News debated a 2025 article on whether countries can meet dietary guidance from domestic food production alone.

Commenters argued that apparent self-sufficiency looks weaker once imported feed, fishmeal, and supply-chain stability are factored in.

Some noted the limits are not just physical: economics, land use, climate, and trade incentives shape what countries produce.

The discussion focused on food security, crisis resilience, and how close countries like Ireland, Australia, Hungary, the U.S., Mexico, and Iceland really are to self-sufficiency.