Global Obesity Crisis: Over 50% of Adults Predicted to Be Obese by 2050!

Global Obesity Crisis: Over 50% of Adults Predicted to Be Obese by 2050, The Lancet Report!

KAKALI DAS

What is the root cause of many diseases? Many may consider cancer or heart disease as the leading causes of health issues, but according to doctors, the true “mother of all diseases” is OBESITY.

Obesity is a growing global health epidemic. Within the next two decades, over half of the world’s adult population and a third of children and teenagers are expected to be affected by it.

Obesity, as defined by the World Health Organization, is the excessive accumulation of body fat, posing a significant health risk. It increases the likelihood of early death and is linked to high blood pressure, heart disease, diabetes, cancer, and various other serious health conditions.

Today, over 2 billion adults and nearly half a billion children worldwide are overweight or obese, with these numbers rising rapidly. In contrast, back in 1990, obesity affected around 700 million adults and 200 million children, highlighting the alarming increase over the years.

Over the past three decades, obesity rates have more than doubled. If current trends continue, projections for 2050 estimate that approximately 186 million (141–221) children and young adolescents, 175 million (136–203) older adolescents, 838 million (692–921) men, and 1.11 billion (0.942–1.21) women will be living with obesity.

These projections come from a recent global study published in The Lancet journal. (https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(25)00397-6/fulltext)

This study comes as a shock—not only due to the staggering statistics but also because the trend reflects an unexpected transition.

In The Lancet, two reports from the GBD 2021 Adolescent BMI Collaborators and the GBD 2021 Adult BMI Collaborators, part of the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD), update us on recent developments and offer projections for the prevalence of overweight and obesity through 2050.

For centuries, undernutrition was the greater concern, but today, obesity has become the most prevalent form of malnutrition in many countries. While the number of underweight individuals has declined, obesity rates have surged. Currently, two-thirds of the world’s population is more likely to be obese than underweight. Yet, despite this shift, one undeniable connection remains—malnutrition. In any form, malnutrition continues to disproportionately affect the poor.

More than half of the world’s obese adults are concentrated in just eight countries. Leading the list is China, with 402 million overweight or obese individuals. India, now the world’s most populous nation, presents a stark contrast—while 800 million adults rely on food subsidies, 180 million people struggle with obesity.

The disparity Is striking. Meanwhile, in the US—where junk food consumption is alarmingly high—172 million adults are obese.

With a few exceptions, low- and middle-income countries bear the brunt of the global obesity crisis, and this trend is unlikely to change anytime soon. However, in the coming years, the focus is expected to shift.

“The unprecedented global epidemic of overweight and obesity is a profound tragedy and a monumental societal failure,” said lead author Prof EmmanuelaGakidou, from the University of Washington.

By 2050, nearly one in three children and young people with obesity (130 million) are expected to be concentrated in just two regions—North Africa and the Middle East, and Latin America and the Caribbean—bringing significant health, economic, and societal consequences, according to the report.

Obesity is projected to increase by 250%, with Nigeria facing the worst impact, where 141 million adults are expected to be obese. This grim forecast carries profound health and economic consequences. While these trends are general, the Lancet report highlights the need to consider variations based on location, sex, and age when interpreting the data.

A second study, published on March 3 by the World Obesity Federation (https://data.worldobesity.org/publications/?cat=23) specifically warned about the growing impact of obesity in poorer countries.

“By far the greatest number of premature deaths attributable to high BMI are in lower- and upper-middle-income countries – indicating poor levels of treatment available,” its authors wrote.

Johanna Ralston, the chief executive of the World Obesity Federation, said: “Obesity has significant health, economic and societal impacts that are likely to be more challenging for lower-resourced countries to address.”

Why is this happening? The short answer—global policy failure.

The long answer—a combination of factors: inadequate healthcare and treatment, lack of efforts to promote physical activity, rising costs of healthy food, the affordability and accessibility of junk food, and escalating pollution levels. Together, these factors fuel the growing obesity crisis.

Countries have been taking steps in the right direction. For example, in India, a recent anti-obesity campaign was launched, with the Prime Minister leading the charge. He encouraged people to reduce oil consumption and challenge others to do the same. This approach is an effective way to promote collective action and demonstrates strong intent from the highest levels of government.

However, relying solely on behavioural change may not be enough. Solutions must focus on structural reforms, including policies on food and the environment—an area where most nations fall short. Citizens need walkable cities, stricter marketing regulations on junk food, higher taxes on sugary drinks, greater access to healthy food, physical education in schools, and targeted support for low-income households, who often have little choice in the matter.

If governments are truly committed to addressing obesity, a range of urgent changes must be implemented. As the saying goes, there’s no time like the present to begin—after all, every day is a new opportunity.

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