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In a candid address at the Medical Journalists’ Association annual lecture, Professor Sir Chris Whitty, England’s Chief Medical Officer, raised concerns about the growing reliance on weight-loss medications such as Wegovy and Mounjaro. While acknowledging the transformative potential of these drugs for a select few, Sir Chris cautioned that depending on them as a primary solution to obesity represents a fundamental failure of society and public health.
The Reality of Obesity in the UK
Sir Chris highlighted a troubling statistic: approximately two-thirds of adults in the UK are classified as overweight or obese. This rising trend is alarming, especially when compared to France, where obesity rates have stabilised over the past three decades. In the early 1990s, both the UK and France exhibited similar obesity levels, but the UK has seen a dramatic increase since then. The Chief Medical Officer underscored the importance of addressing the root causes of obesity rather than merely medicating those affected.
“Letting people become obese, only to then medicate them for life, is not just shocking; it’s the wrong response to one of the UK’s most pressing health challenges,” he stated.
A Call for Public Health Action
During his speech, Sir Chris expressed his deep concern over the public perception that weight-loss drugs could serve as a convenient fix for obesity. He questioned, “Is our answer to say ‘give up on public health’ and then just rely on drugs to get us out of a hole?” He firmly believes that such an approach is neither socially nor medically acceptable.

Weight-loss medications function by mimicking natural hormones that promote feelings of fullness, yet Sir Chris cautioned that these treatments are not without their risks and side effects. The NHS currently provides these drugs through specialist weight management services for those in greatest need, but a burgeoning private market has emerged, with many individuals paying substantial sums for access. Last year alone, it is estimated that around 1.6 million people attempted to utilise these weight-loss drugs.
A Societal Examination of Food Choices
Sir Chris also directed his criticism towards the aggressive marketing of unhealthy food products targeted at children, which he believes significantly contributes to the obesity epidemic. He noted that children in the UK are often faced with a barrage of advertising promoting junk food, leaving the healthcare system to deal with the long-term consequences.
He illustrated his point by contrasting the food environments in parts of the UK, such as Wigan and Blackpool, with those in similar towns in France. “The food available on high streets in the UK is completely different to what can be found in equivalent towns in France,” he remarked. This disparity, he emphasised, is not the fault of individuals but rather a reflection of societal choices regarding the availability of food.
Learning from Successful Models
Sir Chris advocated for a shift in perspective when it comes to nutrition and public health. He asserted that reducing fat and sugar intake does not necessitate sacrificing enjoyable meals. “No one can claim the French don’t enjoy their food,” he stated, suggesting that it is indeed possible to promote healthy, delicious, and affordable options.

He pointed to France as a successful model, encouraging the UK to learn from its approaches to healthy eating and obesity prevention. “It’s perfectly possible to turn this around,” he remarked, urging a collective effort to create a food culture that prioritises health.
Why it Matters
Professor Sir Chris Whitty’s remarks serve as a critical reminder that tackling obesity requires a multifaceted approach, one that encompasses public health initiatives, responsible food marketing, and societal change. As the UK grapples with rising obesity rates, it is essential to prioritise preventive measures over pharmaceutical solutions. By learning from successful models abroad, such as France, the UK can foster a healthier population that prioritises wellbeing and nutritious choices, ultimately reducing the burden on the healthcare system.