Guyana is currently the only country in the world that produces enough of every major food group to fully feed its own population without needing imports, according to recent research.

What the study actually found

A 2025 study (published in the journal Nature Food and widely reported in science media) assessed 186 countries on whether they could, in principle, meet their dietary needs from domestic production alone across seven key food groups.

Those groups include fruits, vegetables, dairy, fish, meat, plant-based proteins (like legumes, nuts and seeds) and starchy staples such as grains or root crops.

The one fully self‑sufficient country

  • Guyana, a small South American nation of under 1 million people, was the only country that met its people’s needs in all seven food categories.
  • It has a warm, humid tropical climate, abundant rainfall, and fertile clay soils that make it highly suitable for diverse crop and livestock production.

In everyday life, that shows up as local markets stocked with domestically produced rice, cassava and other roots, fresh fish, fruits and vegetables that could theoretically cover the entire nation’s nutritional requirements.

What about big producers like China or Vietnam?

  • China and Vietnam ranked just behind Guyana: both can produce enough food for six out of the seven key groups but fall short in one category each.
  • Many other countries substantially overproduce meat and dairy compared with their citizens’ needs while underproducing other categories such as fruits, vegetables or plant-based proteins, so they still depend on imports for a balanced national diet.

Why “produces all the food it needs” is tricky

The phrase “which country produces all the food it needs” can mean different things:

  • Nutritional coverage: The study looked at whether a country could feed its people a complete diet from domestic output, not whether it has stopped importing food in reality.
  • Trade still happens: Even Guyana trades foods internationally; the point is that it has the capacity to be fully self‑sufficient if it had to be.

So in policy and academic discussions, Guyana is currently singled out as the only nation that ticks every box for complete food self‑sufficiency across the main food groups.

TL;DR: If you are asking “which country produces all the food it needs” in the strict, research-based sense of covering all essential food groups for its population from domestic production, the answer right now is Guyana.