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Vietnam: The Thinnest Country in the Fattest Region

Southeast Asia is experiencing one of the fastest accelerations in obesity prevalence globally. From Malaysia's staggering 54.4% combined overweight-and-obesity

Akhyari Hananto

August 30, 2026 9:12 AM GMT+7

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Data Sources

Regional estimates for Indonesia, Philippines, and Singapore drawn from WHO Global Health Observatory and national surveys

Southeast Asia is experiencing one of the fastest accelerations in obesity prevalence globally. From Malaysia's staggering 54.4% combined overweight-and-obesity rate to Singapore's 40% and the Philippines' 37%, the region has become a frontline in the global obesity pandemic. Every major economy in ASEAN now faces a crisis, except one.

Vietnam stands apart with an adult obesity rate of just 2.1%, the lowest not only in Southeast Asia but among all countries with reliable data globally. Even its combined overweight-and-obesity figure of 21.5% is less than half the regional average. This is not a marginal difference, it is a structural one, rooted in fundamentally different dietary patterns, physical activity levels, and policy postures.

The contrast is sharpest when comparing Vietnam to its wealthier neighbors. Malaysia, Thailand, Singapore, the Philippines, and Indonesia have all undergone substantial nutrition transitions. Their food environments are saturated with ultra-processed products, their populations are increasingly sedentary, and their governments are scrambling to respond. Vietnam, while not immune, has so far resisted the full force of these pressures.

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