• Overview
  • Obesity prevalence
  • Trends over time
  • Contextual factors
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Obesity prevalence

Adults, 2019

Survey type:Measured
Age:15-69
Sample size:6654
Area covered:National
References:Fourth national STEPS Survey on the Prevalence of Noncommunicable Disease and Injury Risk Factors 2019. Brief Summary. Available at https://cdn.who.int/media/docs/default-source/ncds/ncd-surveillance/data-reporting/mongolia/mongolia-steps-survey---2019_brief-summary_english.pdf?sfvrsn=5ba7a1d3_1&download=true (last accessed 16.09.21)
Unless otherwise noted, overweight refers to a BMI between 25kg and 29.9kg/m², obesity refers to a BMI greater than 30kg/m².

Adults, 2017

Survey type:Measured
Age:15-49
Sample size:3314
Area covered:National
References:National Centre for Public Health (2017). Nutrition status of the population of Mongolia. Fifth National Nutrition Survey. Ulaanbaatar, Mongolia. Available at https://www.unicef.org/mongolia/reports/fifth-national-nutrition-survey-report (accessed 20.04.2020)
Unless otherwise noted, overweight refers to a BMI between 25kg and 29.9kg/m², obesity refers to a BMI greater than 30kg/m².

Adults, 2013

Survey type:Measured
Age:15-64
Sample size:5119
Area covered:National
References:Chimeddamba O, Gearon E, Stevenson C et al. Trends in Adult Overweight and Obesity Prevalence in Mongolica 2005-2013. Obesity 2016;24(10):2194-2201
Unless otherwise noted, overweight refers to a BMI between 25kg and 29.9kg/m², obesity refers to a BMI greater than 30kg/m².

Adults, 2009

Survey type:Measured
Age:15-64
Sample size:5314
Area covered:National
References:Mongolian STEPS Survey on the Prevalence of Non-communicable Disease and Injury Risk Factors - 2009
Unless otherwise noted, overweight refers to a BMI between 25kg and 29.9kg/m², obesity refers to a BMI greater than 30kg/m².

Adults, 2005

Survey type:Measured
Age:15-64
Sample size:3411
Area covered:National
References:Mongolian STEPS Survey on the prevalence of noncommunicable disease risk factors 2006
Unless otherwise noted, overweight refers to a BMI between 25kg and 29.9kg/m², obesity refers to a BMI greater than 30kg/m².

Children, 2023

Survey type:Measured
Age:13-17
Sample size:3311
Area covered:National
References:Global School-Based Student Health Survey, Mongolia 2023: Youth's Health Behavior Among Secondary School Children, GSHS-2023. Ulaanbaatar; 2024. Available at: https://www.who.int/publications/m/item/2021-gshs-country-report-mongolia (Accessed: 13.06.25)
Cutoffs:WHO

Children, 2013

Survey type:Self-reported
Age:13-17
Sample size:5393
Area covered:National
References:Global School-based Student Health Survey (GSHS), available at https://www.who.int/ncds/surveillance/gshs/2013_Mongolia_GSHS_Fact_Sheet.pdf?ua=1 (last accessed 14.12.20)
Notes:WHO cutoffs.
Cutoffs:WHO

Children, 2009

Survey type:Self-reported
Age:13-15
Sample size:5238
Area covered:National
References:Global School-based Student Health Survey Factsheet, available at https://www.who.int/ncds/surveillance/gshs/Mongolia_2010_FS.pdf?ua=1 (last accessed 14.12.20)
Cutoffs:WHO

0-5 years, 2023

Survey type:Measured
Age:0-5
Sample size:5117
Area covered:National
References:UNICEF (2023) MONGOLIA Social Indicator Sample Survey-2023 KEY INDICATORS REPORT. Available at (https://mics.unicef.org/sites/mics/files/2024-07/Mongolia%202023%20SISS-MICS%20Key%20Indicators%20Report_English.pdf last accessed 11.06.25)
Cutoffs:>2SD <3 SD, =>3SD

0-5 years, 2023

Survey type:Measured
Age:0-5
Sample size:5117
Area covered:National
References:Mongolia Multiple Indicator Cluster Survey 2023
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight estimates: National and Disaggregated, July 2025, New York. Weighted sample size. For more information, please consult https://data.unicef.org/resources/jme/.
Definitions:Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Cutoffs:=>+2SD

0-5 years, 2018

Survey type:Measured
Age:0-5
Sample size:5882
Area covered:National
References:NSO. 2019. Social Indicator Sample Survey-2018, Survey Findings Report. Ulaanbaatar, Mongolia: National Statistical Office of Mongolia. https://washdata.org/sites/default/files/documents/reports/2019-10/Mongolia-2018-MICS-report.pdf (Accessed 24.06.21)
Notes:Infants
Definitions:Weight for height. Overweight = Between +2SD and +3SD. Obesity = >+3SD
Cutoffs:Other

0-5 years, 2018

Age:0-5
Sample size:5882
References:MICS: Social Indicator Sample Survey-2018, Survey Findings Report. Ulaanbaatar, Mongolia: National Statistical Office of Mongolia
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 2016

Age:0-5
Sample size:2227
References:NNS: Nutrition Status of the Population of Mongolia: Fifth National Nutrition Survey Report
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 2013

Age:0-5
Sample size:5715
References:MICS: Social indicator sample survey 2013 (MICS). Final Report.Ulaanbaatar, Mongolia: National Statistical Office, 2014.
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 2010

Age:0-5
Sample size:3672
References:MICS: 2010 Child Development Survey MICS-4 Final Report
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 2005

Age:0-5
Sample size:3278
References:MICS: Mongolia Child and Development 2005 survey (MICS-3), final report. Ulaanbaatar, Mongolia, 2007
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 2004

Age:0-5
Sample size:1246
References:NNS: Nutritional status of Mongolian children and women: 3rd National nutrition survey report. Ulaanbaatar, Mongolia, 2006.
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 2000

Age:0-5
Sample size:5827
References:MICS: Mongolia child and development survey - 2000 (MICS-2): National report 2001. Ulaanbaatar, Mongolia: National Statistics Office, 2001
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

0-5 years, 1999

Age:0-5
Sample size:4088
References:NNS: Report on the 2nd national child and nutrition survey, Mongolia 1999. Institute of Nutrition and Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Thailand, 2000
Notes:UNICEF/WHO/World Bank Joint Child Malnutrition Estimates Expanded Database: Overweight (Survey Estimates), May 2023, New York. For more information about the methodology, please consult https://data.unicef.org/resources/jme-2023-country-consultations/ Percentage of children under 5 years of age falling above 2 standard deviations (moderate and severe) from the median weight-for-height of the reference population.
Definitions:=>+2SD

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