South-East Asia · Country profile
Obesity in Thailand
16.4% of adults live with obesity (2024). That ranks 141st highest of 199 countries.
16.4%
of adults live with obesity (2024)
Likely range 14.0%–18.8%
Source: WHO
9.1 million
adults with obesity (estimated number)
WHO rate × UN population
Source: WHO; UN WPP 2024
13.5%
of children & teens (5–19) live with obesity (2024)
Source: WHO
#141
highest adult obesity out of 199 countries
#1 = highest share
Source: WHO
The story of Thailand in numbers
In 2024, about 16.4% of adults in Thailand were living with obesity — about 1 in 6 adults, according to World Health Organization estimates (the likely range is 14.0% to 18.8%). That is roughly 9.1 million people aged 18 and over.
That is close to the world average of 16.2%, and ranks 141st highest out of 199 countries. It is above the average for WHO’s South-East Asia region (8.3%).
Back in 1980, the figure was 2.1%. Since then it has gone up by 14.3 percentage points — about 7.8 times the 1980 level. In people, that is a change from about 471 thousand to 9.1 million adults, partly because the population itself changed.
Women are more likely to live with obesity than men: 19.6% compared with 12.9%.
Among children and teenagers aged 5 to 19, 13.5% were living with obesity in 2024, compared with 0.7% in 1980 — around 1.6 million young people.
Obesity is not the only weight problem here: 6.5% of adults are underweight (BMI under 18.5). Health experts call this mix the “double burden” of malnutrition.
For context, 12.3% of adults had diabetes in 2022, 28.9% of adults did not get enough physical activity in 2022 and the food supply provided about 2,855 calories per person per day in 2023. These numbers don’t prove what causes obesity, but they help paint the picture.
Thailand has a national tax on sugar-sweetened drinks, first introduced in 2017, according to the World Bank’s Global SSB Tax Database.
How it changed
Adults with obesity in Thailand: men, women and the world
What this meansSince 1980, the share of men went from 0.7% to 12.9%, and women from 3.5% to 19.6%.
- Men
- Women
- World
Show the numbers as a table
| Year | Men | Women | World |
|---|---|---|---|
| 1980 | 0.7% | 3.5% | 5.4% |
| 1985 | 0.9% | 4.4% | 6.0% |
| 1990 | 1.4% | 5.4% | 6.7% |
| 1995 | 1.9% | 6.6% | 7.6% |
| 2000 | 2.8% | 7.8% | 8.7% |
| 2005 | 3.9% | 9.2% | 10.1% |
| 2010 | 5.4% | 11.0% | 11.5% |
| 2015 | 7.5% | 13.5% | 13.0% |
| 2020 | 10.2% | 16.7% | 14.6% |
| 2024 | 12.9% | 19.6% | 16.2% |
Age-standardized WHO estimates. Shaded bands show the 95% uncertainty range.
Source: WHO Global Health Observatory.
Children & teens (5–19) with obesity in Thailand
What this meansSince 1980, the share of boys went from 0.7% to 16.9%, and girls from 0.6% to 9.9%.
- Boys
- Girls
BMI-for-age more than 2 standard deviations above the WHO growth reference median.
Source: WHO Global Health Observatory.
Thailand compared (2024)
What this meansHow Thailand’s adult obesity rate compares with its region, countries at a similar income level, and the world.
- Upper-middle income countries16.7%
- Thailand16.4%
- World16.2%
- South-East Asia (WHO region)8.3%
Source: WHO Global Health Observatory.
Food supply: calories per person per day in Thailand
What this meansThe food available per person went from 1,980 calories a day in 1961 to 2,855 in 2023. This counts food available, not food actually eaten.
- Thailand
- World
Countries ranked nearby
- 138. Comoros16.8%
- 139. Cabo Verde16.7%
- 140. Austria16.5%
- 141. Thailand16.4%
- 142. Cameroon16.0%
- 143. Spain15.3%
- 144. Somalia14.9%
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