Preliminary findings from Haiti’s 2026 SMART National Nutrition Survey, released at the end of August, contain two headline numbers that appear to contradict each other.

The first: global acute malnutrition among children aged six to 59 months has risen from 5.1 per cent in 2023 to 7.4 per cent in 2026. That is roughly one child in every thirteen.

The second: chronic malnutrition, or stunting, among children under five has fallen over the same period — from 22.8 per cent to 17.3 per cent. Breastfeeding indicators improved too. Early initiation of breastfeeding went from 48 per cent to 68 per cent, and exclusive breastfeeding from 17.5 per cent to 33 per cent.

One set of numbers says children are in worse shape. The other says they are in better shape. Both are in the same survey, and there is no particular reason to think either is wrong.

What the two measurements actually measure

Acute malnutrition and chronic malnutrition are not degrees of the same thing. They are different measurements answering different questions, over different timescales.

Global acute malnutrition — the 7.4 per cent figure — covers moderate and severe wasting plus nutritional oedema. Wasting is weight measured against height: a child who is too thin for how tall they are. It moves fast. A few weeks of not enough food, or a bad bout of diarrhoea, can push a child into it, and a few weeks of treatment can pull them out. It is the measurement humanitarian agencies watch because it responds to what is happening now.

Stunting — the 17.3 per cent figure — is height measured against age. It reflects accumulated deprivation across the first years of life, and to a large extent across the mother’s health during pregnancy. It moves slowly, and once a child is stunted the condition is largely irreversible after about age two. A falling stunting rate today is partly a report on conditions several years ago.

So a country can post a rising wasting rate and a falling stunting rate at the same time without either figure being an error. Nutritionists generally read that pattern as a recent shock landing on a population whose longer-run trend had been improving. Better infant feeding practices, which the survey also records, are consistent with the slower measure improving even as the faster one gets worse.

The shock is not hard to identify

UNICEF’s deputy representative in Haiti, Yannig Dussart, framed the findings against a background of persistent insecurity, economic hardship and humanitarian need limiting families’ access to food, healthcare and nutrition services.

The supporting figures are stark. The Integrated Food Security Phase Classification found that between March and June 2026, more than 5.83 million people in Haiti — 52 per cent of the population analysed — were facing crisis levels of acute food insecurity or worse. The International Organization for Migration has recorded internal displacement in the range of 1.3 million people and rising, driven by armed groups expanding their control of territory.

Displacement is the mechanism that connects the security situation to a child’s arm circumference. A family that leaves its home leaves its income, its garden and its clinic. It arrives somewhere with higher prices, worse water and no health card. This is the same sequence we described in our coverage of the Kenscoff hostage releases, where the underlying displacement figures were the story rather than the incident itself.

Why “preliminary” is doing real work in this sentence

SMART is a standardised survey method — Standardized Monitoring and Assessment of Relief and Transitions — designed so that nutrition results from different countries and different years can be compared. Teams measure a randomly selected sample of households rather than counting everyone, then extrapolate.

That design has two consequences worth stating plainly. Sample-based estimates carry confidence intervals, so a move from 5.1 to 7.4 per cent is a change in a range, not a count of individual children. And surveys can only measure where enumerators can safely go. In a country where armed groups control substantial territory, the areas hardest to reach are usually the areas doing worst — which tends to make national figures optimistic rather than alarmist.

A fuller analysis, combined with an IPC acute malnutrition classification, is expected within the coming month. That is the document that will convert a percentage into a projected caseload — the number of children expected to need treatment, and when.

Where Haiti sits against the wider pattern

A 7.4 per cent acute malnutrition rate is serious, but it is not what agencies classify as an emergency threshold, and it is well below what has been reported this year in Baidoa in Somalia or in the hospitals of northern Yemen. Reporting it as a catastrophe would be inaccurate.

The reason it is worth reporting at all is direction. Haiti’s figure moved the wrong way by nearly half again over three years, in a country where the health system that treats malnourished children is itself under pressure. As we set out in our explainer on why aid cuts surface months later as sicker children, the layer that fails first is usually detection — the screening that finds a child early and cheaply. When that goes, the same number of children get ill and more of them arrive late.

UNICEF says it is working with Haiti’s health ministry to expand screening and treatment, including through community health workers and mobile teams operating in areas that are hard to reach or insecure. Mobile teams are the standard answer to a shrinking map. They are also expensive per child reached, which is the part that depends on funding decisions taken elsewhere.

The honest reading

There is a version of this story that reports only the rise, and a version that reports only the improvement in stunting and breastfeeding. Both would be defensible on the evidence and both would be misleading.

What the survey appears to show is a population whose long-term nutrition indicators had been getting better, absorbing a recent and continuing shock. Which of the two trends dominates over the next few years is not a question the data answers. It depends on whether the displacement stops.

Sources

• UNICEF, preliminary findings of the 2026 SMART National Nutrition Survey, Haiti
• Integrated Food Security Phase Classification, Haiti acute food insecurity analysis, March–June 2026
• International Organization for Migration, Haiti displacement tracking
• Caribbean Media Corporation and HaitiLibre reporting on the survey release