Why have obesity rates doubled since 1993?

by | Aug 29, 2026 | Health

Why have obesity rates doubled since 1993?

Obesity rates in England have risen significantly over the past three decades, with the proportion of adults aged 16 and over classified as obese increasing from 15% in 1993 to 30% in 2024. This represents approximately seven million additional adults living with obesity compared to if rates had remained at their 1993 level. The increase has been particularly pronounced among younger adults, with 18% of those aged 16 to 24 classified as obese or severely obese in 2024, compared to just 6% in 1993, translating to roughly one million young adults currently affected.

Multiple factors have contributed to this rise. Structural economic changes have shifted employment toward sedentary office-based roles, reducing the physical activity levels of the workforce. Simultaneously, food pricing has declined since the 1990s due to supermarket competition and expansion of fast food options, while the growth of food delivery services has made high-calorie meals more accessible and convenient. These economic and lifestyle shifts have combined to make weight gain easier, particularly in areas of high deprivation where less healthy foods are cheaper and more readily available.

Despite the introduction of 14 separate national obesity strategies since 1992, progress has remained limited. Past government initiatives have included advertising restrictions and taxation measures like the 2018 sugar-sweetened beverage levy, though some proposed interventions were not implemented. In January, the Labour government introduced restrictions on junk food advertising, and additional measures targeting unhealthy food sales remain under consideration, including proposals to limit fast food outlets near schools.

Weight loss medications such as GLP1 drugs have emerged as an additional intervention tool, with Wegovy and Mounjaro now available through NHS specialist clinics under specific eligibility criteria, though many patients access these drugs privately. However, England’s Chief Medical Officer has cautioned against relying solely on medication as a long-term solution, emphasizing the importance of broader societal and dietary changes. The health costs of obesity and being overweight are estimated at approximately £126 billion annually to the UK economy, including £12 billion to the NHS.

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