Chuol*, three, eats high nutrient peanut paste in Akobo, South Sudan. The family were forced to flee the fighting in Malakal and walk to Akobo. * indicates that name has been changed to protect identity
Every number tells a story. But behind global hunger statistics, millions of people remain unseen. A recent study published in Nature Food , December 12, 2025 reveals that the world’s primary system for counting acute hunger—a condition in which lack of food threatens health, safety, and life—often underestimates the true scale of the crisis. In other words, about one in five people suffering from hunger never appears in official global reports.
The research was conducted by an international team of scientists, including Erin Lentz of the Lyndon B. Johnson School of Public Affairs at the University of Texas, along with Kathy Baylis, Hope Michelson, and Chungmann Kim. The team reviewed more than 10,000 subnational analyses from the Integrated Food Security Phase Classification (IPC) between 2017 and 2023—a system that serves as the global standard for assessing food insecurity.
When Data Are “Too Safe”
The IPC is designed to identify who needs urgent assistance, helping governments, the United Nations, and humanitarian agencies decide how to allocate roughly US$6 billion in aid each year. But the analysis by Lentz and her colleagues shows that the IPC tends to be conservative in judging who is experiencing food crisis conditions.
According to the official data, about 226.9 million people were classified as being in crisis or worse—Phase 3 or higher, a threshold indicating immediate need for assistance. However, when the underlying food security indicators were reanalyzed, the number that should have fallen into this category rose to approximately 293.1 million—about 29 percent higher than the official figure. That gap means roughly 66 million people suffering acute hunger were not captured in official statistics.
“Our findings suggest that official estimates may be systematically too low,” said Erin Lentz, the study’s lead author and a specialist in global food policy. “That means millions of people are slipping below the radar of humanitarian assistance when they most need support.”
Why So Many Are Missed
Lentz’s analysis points to a systematic bias in how the IPC draws the line between “stressed” and “crisis” conditions. When technical teams conducting assessments face uncertain or mixed data, they often err on the side of assigning a lower classification—possibly due to political sensitivities, weak data coverage, or unseen institutional pressures.
The indicators used by the IPC—such as the Food Consumption Score and the Household Hunger Scale—can paint uneven pictures of reality on the ground. In settings where data are incomplete, analysts may hesitate to assign the highest classifications that would automatically trigger emergency responses, allowing acute hunger to remain hidden behind lower numbers.
That conservatism is compounded by the environments in which the IPC operates: conflict zones, data-poor regions, and communities where conditions change rapidly. “Measuring hunger is never easy,” Lentz said. “But when the system designed to warn us about crisis becomes too cautious, the real victims are the people experiencing food deprivation itself.”
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A Crisis Larger Than the Reports Suggest
Inaccurate numbers are not just a technical issue—they have direct consequences for human lives. In 2023 alone, official figures indicated that around 282 million people worldwide were experiencing life-threatening acute hunger. In such contexts, aid allocation often depends heavily on IPC classifications to determine who is most “eligible” for assistance.
Underestimating need can lead to insufficient humanitarian responses, increased health risks, preventable deaths, and the collapse of livelihoods for those who never appear in official records. Humanitarian organizations already struggle to meet needs based on existing figures—if those figures are too low, the world risks failing to respond adequately to ongoing crises.
The Nature Food findings align with other international assessments showing that global hunger is worsening, driven by conflict, climate change, and economic shocks. While official UN reports document rising levels of acute food insecurity in many countries, data limitations and methodological differences continue to obscure the full picture.
The IPC remains a critical tool for international humanitarian response. But research like that conducted by Lentz and her colleagues underscores a key warning: the world cannot take official hunger numbers at face value. When the most vulnerable fall outside global data systems, they are also pushed outside the world’s attention—and its aid.
The Beginning of Change
The researchers are not calling for the IPC to be abandoned. Instead, they emphasize the need for better data, greater transparency, and a deeper understanding of the processes behind the numbers used to measure hunger. Stronger local participation, improved data collection methods, and explicit acknowledgment of uncertainty could help produce a more accurate picture.
“We need to ensure that everyone experiencing hunger is truly counted,” Lentz said. “Because every missing number is not just a statistic—it is a human life that does not receive the help it needs.”
The latest analysis shows that global food insecurity is more severe than international reports suggest. When nearly 20 percent of people suffering hunger are excluded from official statistics, the world faces a profound challenge in understanding—and responding to—a crisis that continues to deepen. (Sulung Prasetyo)
