Body Weight and the Health of the Adult Population in Québec – Summary

This study provides, for the first time, a profile of the health burden linked to different categories of body weight (underweight, overweight and obesity) among adults 18 years of age or over for the province of Québec. Based on different indicators of physical and mental health drawn from survey data, it describes the proportion and number of men and women who report suffering from specific health problems according to their weight category. The study also identifies the degree to which certain health problems are associated with body weight, as well as highlighting particular associations where Québec stands out from the rest of Canada.

From the standpoint of public health planning, the findings presented can be used to identify initiatives that would most effectively improve the wellbeing and the quality of life of the Québec population.


  • In Québec, excess weight is synonymous with a greater number of health problems.
  • Obesity is strongly associated with diabetes and hypertension.
  • Health problems related to excess weight are more numerous among women.
  • Underweight is linked to certain health problems.
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