Did nan COVID-19 pandemic impact obesity rates successful Canada? A caller study successful CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.241421 recovered obesity rates based connected assemblage wide scale (BMI) accrued faster successful nan 4 years aft nan commencement of nan pandemic than successful nan erstwhile 11 years, particularly successful younger adults.
"Compared pinch nan mean summation during nan 11 years earlier nan pandemic, nan prevalence of obesity [as measured by BMI] accrued astatine a greater complaint during nan 4 years aft nan onset of nan COVID-19 pandemic (2020–2023), suggesting that nan COVID-19 pandemic and associated nationalist wellness restrictions whitethorn person adversely affected obesity prevalence successful Canada," writes Dr. Laura Anderson, subordinate professor, Department of Health Research Methods, Evidence and Impact and co-director of nan Centre for Health Economics and Policy Analysis (CHEPA), McMaster University, Hamilton, Ontario, pinch coauthors.
Obesity is simply a consequence facet for a scope of diseases and tin negatively impact a person's wellness and well-being arsenic good arsenic summation nan load connected nan wellness attraction system. Rates successful Canada were expanding earlier nan pandemic, pinch higher rates of much terrible obesity.
The ample study, which included information connected 746 250 adults aged 18 and older, looked astatine trends successful BMI complete 15 years, from January 2009 to March 2020 and from April 2020 to December 2023. Researchers recovered that BMI-defined obesity rates accrued from 25% successful 2009 to 33% successful 2022, an absolute summation of astir 8%. After nan pandemic started, obesity accrued by conscionable complete 1 percentage constituent a year, astir doubly nan pre-pandemic complaint of increase. As well, obesity rates successful males and females narrowed, pinch a 9% summation successful obesity successful females compared pinch a 7% summation successful males. Obesity rates were highest successful group who were White aliases Black.
"We observed important subgroup differences, pinch respective groups that had a little humanities prevalence of obesity showing a important summation during nan pandemic, including females and young adults. This raises concerns astir imaginable adverse semipermanent consequences," constitute nan authors.
The authors observed a mini summation successful underweight adults during nan study play and statement that being underweight tin person antagonistic wellness effects. They be aware that efforts to reside rising rates of obesity should see unintended effects of weight power messaging connected group pinch eating disorders.
Investment successful investigation and approaches to obesity prevention and curen are needed and should beryllium a privilege for funders and policy-makers.
The investigation was funded by nan Canadian Institutes of Health Research.
Source:
Journal reference:
Anderson, L. N., et al. (2025). Trends successful obesity defined by assemblage wide scale among adults earlier and during nan COVID-19 pandemic: a repeated cross-sectional study of nan 2009–2023 Canadian Community Heath Surveys. Canadian Medical Association Journal. doi.org/10.1503/cmaj.241421.