As a further step towards the implementation of the WHO Global Strategy on Diet, Physical Activity and Health (DPAS), WHO and the World Economic Forum organized a Joint Event (Dalian, China, September 2007) on the prevention of noncommunicable diseases (NCDs) in the workplace through healthy diets and physical activity. This paper provided the background and discussion basis for the Joint Event. It aims to gain insight into the current state of knowledge with regard to best practice methods of monitoring and evaluation (M&E) of worksite health promotion programs (WHPPs) that address healthy diets and physical activity (PA). Specific objectives were first to give an overview of frequently used indicators and measures in M&E, second, to comment on the feasibility of using these methods for M&E of nonscientific WHPPs, and third, to formulate recommendations on M&E of WHPPs. The following indicators were identified and evaluated: -Self-reported dietary intake; -Objective measures of diet; -Self-reported PA outcome; -Objective PA measurement; -Measuring the environment; -Determinants of PA or dietary behaviour; -Biological disease risk indicators; -Process indicators. It is recommended, among other things, that in correspondence with program components and objectives a relatively small set of feasible and less expensive biological indicators (i.e. finger stick cholesterol, fitness or strength tests and/or body weight and length) might be sufficient in M&E of WHPPs in practice.