A study conducted by 65 scientists revealed that diet is the primary contributor to rising obesity rates. It analyzed data from over 4,500 adults across 35 countries, using isotopic water to measure energy expenditure. Results indicated minimal differences in energy burned between communities with varying obesity rates and activity levels. The research concluded that ultra-processed foods are likely to lead to higher body-fat percentages, marking a significant insight into the obesity crisis in developed nations.
Taking into account body size, the researchers found that people from populations with higher obesity rates and lower activity levels burned only slightly less energy compared to populations with lower obesity rates and higher activity levels.
The study found that diet, not a lack of exercise, is the main cause of obesity today, explained Herman Pontzer, principal investigator and professor in the Department of Evolutionary Anthropology at Duke University.
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