According to research from Statistic Canada, obesity among employees is more than just a personal health issue when it begins to affect job performance, and obesity is most prevalent among older workers aged 55 to 64, 21% of whom were obese in 2005. "Obesity on the Job" points out that this held for both men and women, although the prevalence was lower among women.
Among other things, obesity, especially for women, may have a negative impact on workers more often through presenteeism (that is, reduced productivity on the job) rather than absenteeism. In addition, obese men age 55 to 64 had a higher risk of reducing their work activity due to a long-term health problem.
Source: Statistics Canada The Daily (February 20, 2009)