The conclusions that can be drawn from this review are limited by the study designs used, which often lacked control groups, used nonrandomized designs, or relied on self-selected high-risk or volunteer participants. Our rating for the quality of the evidence in the literature as a whole lies between suggestive and indicative. It is clear that worksite nutrition and cholesterol programs are feasible and that participants benefit in the short-term. Conclusive evidence about a causal relationship between worksite nutrition and cholesterol programs and improved behavior or health is not yet available, although studies currently underway hold promise for providing more solid evidence about the potential efficacy of these interventions.