Previous reviews have highlighted the lack of long-term data on the effect of worksite health promotion programmes on health and economic outcomes [12,13,35]. Although some studies in our review had a relatively long duration of follow-up (up to 2.5 years), none reported effects on economic outcomes. Assessment of health and economic outcomes in worksite health promotion interventions should be a priority for future research, particularly given the advent of statistical methods that facilitate estimation of effects of changes in nutrition-related risk factors on burden of disease [10,36], and cost-effectiveness of interventions [37]. A recent review of the effects
of worksite interventions on body weight reported that such programmes appear cost-effective and have the potential to boost profits of employers by increasing
employee productivity and reducing medical care and costs [11]. However, robust evidence is still lacking.