Undernourishment: How the World Counts Hunger, and Why So Many Rich Countries Are Blank

Hunger feels like it should be the simplest thing in the world to count: either people have enough to eat or they don't. But turning that into a number for a whole country, comparable across the world, takes a precise definition — and the map of it has a feature that surprises people: much of the wealthy world is blank.

What the number measures

The figure is the share of a country's people who are undernourished — whose habitual food intake does not provide enough dietary energy for a normal, active and healthy life, sustained across a year. The UN calls it the prevalence of undernourishment, and it is the most clearly defined of the world's hunger numbers.

A value of 20 per cent means that, by this measure, roughly one person in five in that country does not get enough food energy year-round. It is a measure of chronic hunger — not a single skipped meal, and not a short-term crisis, but a sustained shortfall.

Hunger, and the broader thing around it

Undernourishment is the narrowest and hardest of several hunger figures, and it helps to see where it sits:

• undernourishment — not enough food energy, chronically — about 673 million people worldwide;
• food insecurity — uncertainty about getting enough safe, nutritious food at times in the year, including having to cut quality or quantity — around 2.3 billion people;
• cannot afford a healthy diet — around 2.6 billion people.

Each is a wider circle than the last. This map shows the innermost, best-defined one: the people for whom there is simply not enough food energy.

Why so much of the map is blank

The surprising feature of the map is that many wealthy countries — across North America, western Europe, and the richer parts of east Asia and the Gulf — appear as no-data rather than as a low value.

That is not a gap in a worrying sense. In high-income countries, chronic undernourishment by this measure is statistically near zero, and the FAO does not publish a reliable national figure where the prevalence falls below the level its method can estimate. So a blank country here generally means hunger of this kind is negligible, not that something is missing. (Those same countries can still have real food insecurity and poverty — a different, broader measure this map does not show.)

The practical consequence: the map is most meaningful across the lower- and middle-income world, where the differences between countries are real, large, and the whole point.

How to read the map

Deeper colour means a larger share of the population is chronically undernourished. The worst-hit countries are concentrated in sub-Saharan Africa and parts of southern Asia, where one in five people or more can be affected. Read each value as the share of people without enough food energy, year-round — the chronic-hunger figure, not the broader food-insecurity one, and not a count of hunger deaths.

Every value carries its source and year, and the figure is published with an uncertainty range, because hunger is estimated rather than tallied person by person. For the other side of the world's food story — where the opposite problem has taken hold — see the overweight map; the two are the two faces of how the world eats. And for the single world figure as a live standing number, see the people-undernourished counter in Pulse.