Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in World

World: Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) was 6.7% in 2024. ▼ Falling

Latest (2024)
6.7%
Change on year
down 2.7%
Rank
5th
of 11 groups
All-time high
17.6%
in 1980
All-time low
6.7%
in 2024
Years of data
45
1980–2024

Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in World, 1980–2024

051015201980200220241980: 17.61981: 17.41982: 17.11983: 16.81984: 16.61985: 16.31986: 16.11987: 15.81988: 15.51989: 15.31990: 151991: 14.81992: 14.51993: 14.31994: 14.11995: 13.91996: 13.61997: 13.41998: 13.21999: 132000: 12.82001: 12.62002: 12.32003: 12.12004: 11.92005: 11.62006: 11.42007: 11.12008: 10.82009: 10.52010: 10.32011: 102012: 9.72013: 9.42014: 9.12015: 8.82016: 8.52017: 8.32018: 82019: 7.82020: 7.52021: 7.32022: 7.12023: 6.92024: 6.7

Source: World Health Organization, Global Health Observatory.

Analysis

The most recent figure for underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in World is 6.7%, measured in 2024. That is the lowest value across all 45 years on record.

That represents a change of down 2.7% on the previous year and down 25.8% over ten years.

Over the whole period, underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in World peaked at 17.6% in 1980 and was at its lowest, 6.7%, in 2024.

The long-run direction has been consistently falling across the 45 years of available data.

Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in World, year by year

Annual values for Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) (%) in World, 1980 to 2024.
Year Value Change
1980 17.6%
1981 17.4% -1.4%
1982 17.1% -1.5%
1983 16.8% -1.5%
1984 16.6% -1.6%
1985 16.3% -1.6%
1986 16.1% -1.6%
1987 15.8% -1.6%
1988 15.5% -1.7%
1989 15.3% -1.7%
1990 15.0% -1.7%
1991 14.8% -1.6%
1992 14.5% -1.6%
1993 14.3% -1.6%
1994 14.1% -1.5%
1995 13.9% -1.5%
1996 13.6% -1.5%
1997 13.4% -1.6%
1998 13.2% -1.6%
1999 13.0% -1.6%
2000 12.8% -1.7%
2001 12.6% -1.7%
2002 12.3% -1.8%
2003 12.1% -1.9%
2004 11.9% -2.0%
2005 11.6% -2.1%
2006 11.4% -2.2%
2007 11.1% -2.3%
2008 10.8% -2.5%
2009 10.5% -2.6%
2010 10.3% -2.7%
2011 10.0% -2.8%
2012 9.7% -2.9%
2013 9.4% -3.0%
2014 9.1% -3.1%
2015 8.8% -3.2%
2016 8.5% -3.2%
2017 8.3% -3.1%
2018 8.0% -3.0%
2019 7.8% -3.0%
2020 7.5% -2.9%
2021 7.3% -2.9%
2022 7.1% -2.8%
2023 6.9% -2.7%
2024 6.7% -2.7%

Averages by decade

DecadeAverage LowestHighest Years
1980s 16.4% 15.3% 17.6% 10
1990s 14.0% 13.0% 15.0% 10
2000s 11.7% 10.5% 12.8% 10
2010s 9.0% 7.8% 10.3% 10
2020s 7.1% 6.7% 7.5% 5

Countries ranked near World

  1. 2 Ethiopia 21.8% compare
  2. 3 Central African Republic 20.8% compare
  3. 4 Timor-Leste 20.7% compare
  4. 5 Somalia 19.5% compare
  5. 6 Niger 19.3% compare
  6. 7 Madagascar 17.8% compare
  7. 8 Senegal 17.2% compare

See the full ranking of 211 places →

More health data for World

All data for World →

Frequently asked questions

What is underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in World?
Underweight among adults, bmi < 18.5 kg/m2 (crude estimate) in World was 6.7% in 2024, according to World Health Organization, Global Health Observatory.
What is the highest underweight among adults, bmi < 18.5 kg/m2 (crude estimate) recorded in World?
The highest recorded value was 17.6% in 1980.
What is the lowest underweight among adults, bmi < 18.5 kg/m2 (crude estimate) recorded in World?
The lowest recorded value was 6.7% in 2024.
How does World rank for underweight among adults, bmi < 18.5 kg/m2 (crude estimate)?
World ranks 5th out of 11 groups with data for 2024.
Is underweight among adults, bmi < 18.5 kg/m2 (crude estimate) rising or falling in World?
Over the last ten years it is down 25.8%. The long-run trend across the full record is falling.
Where does this World data come from?
The figures come from World Health Organization, Global Health Observatory, published as part of Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) (%). Statizoid updates them automatically from the source API.

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Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) in World. Statizoid, drawing on World Health Organization, Global Health Observatory. Retrieved 08 September 2026, from https://health.statizoid.com/stat/underweight-among-adults-bmi-18-5-kg-m2-crude-estimate-percent/world/

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About this data

Indicator
Underweight among adults, BMI < 18.5 kg/m2 (crude estimate) (%)
Source
World Health Organization, Global Health Observatory
Licence
CC BY-NC-SA 3.0 IGO (WHO)
Coverage
211 places, 9,495 data points, 1980–2024
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