The world is getting heavier.
A recent global analysis published in The Lancet warns that by 2050, more than half of all adults and one-third of children and teens worldwide could be overweight or obese unless immediate action is taken. Over the past 30 years, the global rates of obesity and excess weight have more than doubled, currently affecting 2.1 billion adults and 493 million young people. Projections indicate that 60% of adults and 33% of children and teens will be obese by 2050, marking a drastic increase from current levels.
Among high-income nations, the United States has the highest obesity rates, with almost half of its adult population classified as obese in 2021. Other countries such as China, India, and Brazil also have substantial numbers of people affected by obesity. By 2050, China and India are expected to have the largest populations of obese adults. Furthermore, sub-Saharan Africa is predicted to see a sharp rise in obesity, with its rates increasing by more than 250% over the next several decades.
The study underscores the need for urgent intervention, especially for children and adolescents, who have seen a significant rise in obesity rates. In particular, the rate of obesity in children aged 5-14 has doubled, and for teens and young adults aged 15-24, it has also surged. The researchers predict that obesity will rise faster than general overweight rates in the next decade, with boys being more severely affected than girls.
Despite these alarming projections, experts argue that it is still possible to prevent a global shift toward obesity, particularly in young populations. Dr. Jessica Kerr, one of the lead researchers, stressed the importance of implementing region-specific prevention strategies in areas like Europe, South Asia, North America, and Latin America, where obesity is becoming more prevalent. These strategies must be comprehensive and implemented quickly to avoid future health and social consequences.
In summary, the global obesity crisis poses significant health, economic, and social challenges. Researchers call for immediate and focused action to prevent further increases in obesity rates, particularly among vulnerable groups like children and adolescents. Without these interventions, future generations could face severe health issues and considerable societal and economic burdens.
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