When Obesity Meets Infection Risk

Researchers analyze data from Finnish cohorts and the UK Biobank to examine how body mass index relates to severe infections and their global burden.

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Adults with the highest body mass index face nearly threefold higher risk of infection-related hospitalization or death.
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Obesity contributes to approximately 8.6% of infection-related deaths globally in 2018, increasing to 15.0% in 2021.
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Class III obesity is linked to nearly threefold higher risk of severe infections compared to individuals with healthy weight.
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Weight loss from obesity is associated with reduced infection risk, while weight gain increases risk without returning to healthy levels.
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The study highlights that adult obesity is a significant risk factor for infection-related mortality across various populations.

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