Recommendations for prevention of weight gain and use of behavioural and pharmacologic interventions to manage overweight and obesity in adults in primary care

The prevalence of obesity in adults has increased worldwide and has almost doubled in Canada, from 14% in 1978/79[1][1] to 26% in 2009–2011,[2][2] with 2% of men and 5% of women having a body mass index (BMI) score greater than 40 (Appendix 1, available at [www.cmaj.ca/lookup/suppl/doi:10.1503/