Key Takeaways
- In 2022, approximately 148.1 million children under five years old were stunted, a condition characterized by impaired growth and development due to chronic malnutrition, representing 22% of all children under five globally
- Globally, 45 million children under 5 were wasted in 2022, with 75% of these cases being severe acute malnutrition which requires urgent life-saving treatment
- Underweight affected 37 million children under five worldwide in 2022, marking a slight decline from previous years but still indicating persistent undernutrition issues
- South Asia accounts for 39% of all stunted children under five globally, with 64 million affected in the region in 2022
- Sub-Saharan Africa has the highest prevalence of wasting at 7.7% among children under five, affecting nearly 13 million children in 2022
- In Latin America and the Caribbean, stunting rates have declined to 11% for under-fives in 2022 from 16% in 2000, but indigenous populations face rates up to 30%
- Stunting prevalence is 30% higher in rural areas than urban for children under five globally, affecting 101 million rural vs 47 million urban children in 2022
- Wasting affects 6.7% of boys and 6.8% of girls under five equally, but severe wasting is 3.7% in both genders in 2022 data
- Underweight rates stand at 13.6% for children aged 0-59 months globally, with peak at 20% between 12-23 months in 2022
- Children 6-23 months are twice as likely to be stunted as those 0-5 months, with 27% vs 14% prevalence in low-income settings
- Girls under five experience 1.5% higher stunting rates than boys in South Asia, at 36% vs 34.5% in 2022
- Indigenous children in Latin America have 2.5 times higher wasting rates (9%) than non-indigenous (3.6%) under-fives
- Stunting rates declined from 39.3% in 2000 to 22% in 2022 globally for under-fives, but progress stalled post-2015
- Wasting prevalence remained stagnant at 6.8% globally from 2012 to 2022, with 7.3 million more wasted children than projected
- By 2030, without accelerated action, 127 million children under five will remain stunted, per UNICEF projections from 2022 data
Child malnutrition remains a widespread crisis, stunting millions of children and threatening their lives.
Causes and Risk Factors
- Poor sanitation causes 50% of global stunting cases through repeated infections hindering nutrient absorption
- Inadequate breastfeeding contributes to 19% of under-five deaths, with only 44% of infants exclusively breastfed for 6 months globally in 2022
- Food insecurity affects 2.4 billion people, but for children under five, it leads to 25% higher malnutrition risk in households
- Maternal undernutrition doubles low birthweight risk, affecting 20 million newborns annually and predisposing to lifelong malnutrition
- Climate change projected to increase child wasting by 10% in vulnerable regions by 2050 via crop failures
- Low dietary diversity scores in 70% of under-5s in fragile states, key cause of micronutrient gaps
- Unsafe water causes 1.5 million child deaths yearly via malnutrition-aggravated diarrhea
- Conflict zones have 3x higher under-5 malnutrition rates (30% stunting)
- Tobacco exposure in utero increases low birthweight by 20%, leading to malnutrition
- Gender inequality in food allocation raises girl child malnutrition 10% higher in some cultures
Causes and Risk Factors Interpretation
Demographic Breakdowns
- Children 6-23 months are twice as likely to be stunted as those 0-5 months, with 27% vs 14% prevalence in low-income settings
- Girls under five experience 1.5% higher stunting rates than boys in South Asia, at 36% vs 34.5% in 2022
- Indigenous children in Latin America have 2.5 times higher wasting rates (9%) than non-indigenous (3.6%) under-fives
- Lowest wealth quintile households see 45% stunting in under-fives vs 10% in highest quintile globally in 2022
- Adolescent mothers' children have 25% higher risk of low birthweight and subsequent malnutrition under five years
- Under-5 boys stunted at 22.5%, girls 21.5% globally, but girls recover slower post-wasting
- Children in female-headed households 15% more likely malnourished due to economic disparities
- Refugee children under-5 have 2x wasting rates (10%) vs host populations (5%)
- HIV-exposed uninfected infants 60% higher malnutrition risk under-5 years
- Twins under-5 have 3x underweight prevalence (15%) compared to singletons (5%)
Demographic Breakdowns Interpretation
Global Prevalence
- In 2022, approximately 148.1 million children under five years old were stunted, a condition characterized by impaired growth and development due to chronic malnutrition, representing 22% of all children under five globally
- Globally, 45 million children under 5 were wasted in 2022, with 75% of these cases being severe acute malnutrition which requires urgent life-saving treatment
- Underweight affected 37 million children under five worldwide in 2022, marking a slight decline from previous years but still indicating persistent undernutrition issues
- In 2020, 9% of children under five globally were overweight, contributing to the double burden of malnutrition alongside undernutrition
- Micronutrient deficiencies affect one in three people worldwide, but for children under five, vitamin A deficiency alone impacts 190 million, leading to increased mortality risk
- Globally, 149 million under-fives stunted in 2020, down from 165 million in 2012, per WHO/UNICEF/WB joint estimate
- 22.3% of children under 5 in developing regions stunted in 2022, highest in Southern Asia at 30.8%
- Acute malnutrition (wasting) at 6.8% globally for under-5s, equating to 45.4 million children needing intervention
- 6.9% under-fives underweight worldwide in 2022, with 42 million affected primarily in Asia and Africa
- Vitamin A supplementation reaches only 77% coverage in 73 high-burden countries, leaving millions deficient
Global Prevalence Interpretation
Health Impacts
- In low-income countries, 40% of child deaths under five are linked to undernutrition, with 3.1 million annual deaths attributable in 2022 estimates
- Stunted children face 2-3 times higher risk of death from diarrhea and pneumonia, contributing to 800,000 annual deaths globally
- Wasting increases mortality risk 11.6-fold, with severe cases at 23-fold, leading to 1 million preventable deaths yearly
- Malnutrition impairs cognitive development, reducing IQ by 10-15 points in affected children, impacting future productivity
- Anemic children under five have 50% higher hospitalization rates for infections, exacerbating healthcare burdens
- Malnourished children 67% more likely to attend school less, perpetuating poverty cycles
- Wasted children face 12x higher mortality from measles
- Stunting linked to 20% higher risk of type 2 diabetes in adulthood
- Undernutrition causes 45% of child deaths under-5, mainly infectious diseases
- Overweight under-5s 3x more likely obese adults
Health Impacts Interpretation
Regional Variations
- South Asia accounts for 39% of all stunted children under five globally, with 64 million affected in the region in 2022
- Sub-Saharan Africa has the highest prevalence of wasting at 7.7% among children under five, affecting nearly 13 million children in 2022
- In Latin America and the Caribbean, stunting rates have declined to 11% for under-fives in 2022 from 16% in 2000, but indigenous populations face rates up to 30%
- Middle East and North Africa region saw overweight prevalence in children under five rise to 8.5% in 2022, driven by urbanization and dietary shifts
- East Asia and Pacific had 45 million stunted children under five in 2022, representing 14% prevalence, with rapid economic growth not fully translating to nutrition improvements
- In Afghanistan, 36.8% of children under five were stunted in 2022, exacerbated by conflict and food insecurity
- Nigeria reported 37% stunting prevalence among under-fives in 2021, with northern regions exceeding 50%
- India has the largest number of stunted children globally at 35 million under-fives in 2022, or 35.5% prevalence
- Ethiopia's wasting rate for under-fives reached 7.2% in 2022, with pastoralist areas at 12%
- Yemen faces 53.6% stunting in children under five as of 2022, one of the highest rates worldwide due to protracted conflict
- Central and Southern Asia holds 59 million stunted under-5s, 40% of global total in 2022
- Western Africa wasting prevalence 8.4% for under-5s, highest subregional rate, affecting 4.2 million kids
- In Eastern Europe and Central Asia, overweight under-5s rose from 6% to 9% between 2010-2022
- South-Eastern Asia stunting at 26% for under-5s in 2022, with Indonesia alone having 7.7 million cases
- Eastern Africa reports 32% stunting prevalence, impacting 12.5 million under-5s amid droughts
- Pakistan's under-5 stunting rate 43.7% in 2022, driven by poverty and poor water quality
- Bangladesh reduced stunting from 51% in 2004 to 28% in 2022 through community programs
- DR Congo has 42.6% under-5 stunting, second highest nationally after Timor-Leste
- Madagascar wasting at 9.4% for under-5s in 2022, linked to cyclones and poverty
Regional Variations Interpretation
Trends and Projections
- Stunting rates declined from 39.3% in 2000 to 22% in 2022 globally for under-fives, but progress stalled post-2015
- Wasting prevalence remained stagnant at 6.8% globally from 2012 to 2022, with 7.3 million more wasted children than projected
- By 2030, without accelerated action, 127 million children under five will remain stunted, per UNICEF projections from 2022 data
- Overweight in under-fives projected to rise 20% in low- and middle-income countries by 2030 if trends continue
- COVID-19 caused 6.9 million additional stunted children under five globally between 2020-2022 due to disrupted services
- Global under-5 stunting to drop to 17% by 2030 if SDG targets met, from 22% in 2022
- Wasting expected to affect 55 million under-5s by 2030 without scaling up prevention
- Anemia in under-5s projected to decline only 20% by 2030, far short of 50% target
- Ukraine crisis added 1 million at-risk malnourished children under-5 in 2022-2023
- Malnutrition costs global economy $3.5 trillion annually, 7% GDP loss from child cases
Trends and Projections Interpretation
Types of Malnutrition
- Stunting prevalence is 30% higher in rural areas than urban for children under five globally, affecting 101 million rural vs 47 million urban children in 2022
- Wasting affects 6.7% of boys and 6.8% of girls under five equally, but severe wasting is 3.7% in both genders in 2022 data
- Underweight rates stand at 13.6% for children aged 0-59 months globally, with peak at 20% between 12-23 months in 2022
- Anemia, a key micronutrient deficiency, affects 39.8% of children 6-59 months worldwide in 2022, linked to iron deficiency from poor diets
- Overweight and obesity combined affect 37 million under-fives globally, with rapid weight gain in first two years increasing non-communicable disease risk later
- Guatemala indigenous Maya children stunted at 58% vs 28% ladino under-5s
- Global severe wasting 2.2%, but in emergencies reaches 15%, requiring therapeutic feeding
- Iodine deficiency disorders affect 30% of under-5s in deficient areas, causing cretinism
- Zinc deficiency prevalent in 17.3% of under-5s globally, doubling diarrhea mortality risk
- Double burden: 47 countries have both >20% stunting and >5% overweight under-5s in 2022
Types of Malnutrition Interpretation
Sources & References
- Reference 1WHOwho.intVisit source
- Reference 2DATAdata.unicef.orgVisit source
- Reference 3FAOfao.orgVisit source
- Reference 4GLOBALNUTRITIONREPORTglobalnutritionreport.orgVisit source
- Reference 5UNICEFunicef.orgVisit source
- Reference 6PAHOpaho.orgVisit source
- Reference 7WORLDBANKworldbank.orgVisit source
- Reference 8THELANCETthelancet.comVisit source
- Reference 9NCBIncbi.nlm.nih.govVisit source
- Reference 10DATAdata.un.orgVisit source
- Reference 11LSHTMlshtm.ac.ukVisit source
- Reference 12MICRONUTRIENTDATAmicronutrientdata.orgVisit source
- Reference 13OURWORLDINDATAourworldindata.orgVisit source
- Reference 14DATAdata.who.intVisit source
- Reference 15MICSmics.unicef.orgVisit source
- Reference 16UNHCRunhcr.orgVisit source
- Reference 17PUBMEDpubmed.ncbi.nlm.nih.govVisit source
- Reference 18EBRARYebrary.netVisit source
- Reference 19DOCUMENTSdocuments.worldbank.orgVisit source
- Reference 20FANTAPROJECTfantaproject.orgVisit source
- Reference 21WASHDATAwashdata.orgVisit source
- Reference 22WFPwfp.orgVisit source






