This large review examines how strong the evidence really is behind workplace health promotion programmes.
The authors analysed 88 meta-analyses published between 2011 and 2024, covering 339 pooled effect estimates. They assessed interventions targeting stress and mental health, cardiometabolic risk, health-related behaviours and musculoskeletal pain. The most consistent evidence supports stress and mental health interventions. Mindfulness-based approaches showed reductions in stress, anxiety, depression and burnout across multiple reviews.
Multicomponent programmes, combining behavioural, environmental and educational elements, showed small improvements in weight, fruit intake, glucose control and vaccination uptake. However, only 21% of effect estimates were rated as moderate quality. None were rated high quality. Most effects were modest, and study quality varied.
Workplace interventions show measurable effects, however, the strength and certainty of the evidence vary.