Impact of Cooking and Home Food Preparation Interventions Among Adults: A Systematic Review (2011-2016).

OBJECTIVE: To update a review of the impact of interventions for adults that included a cooking component on diet, health, and psychosocial outcomes.

DESIGN: A total of 3,047 records were identified by searching MEDLINE, Agricola, Web of Science, and the Cochrane Central Register of Controlled Trials (January, 2011 to March, 2016). A total of 34 articles met inclusion and exclusion criteria for analysis. Study description and outcomes were extracted and synthesized to generate conclusions regarding impact.

RESULTS: Less than half of the studies included a control group. The most common intended outcomes were improvements in fruit and/or vegetable intake and weight. The majority of studies showed positive dietary behavior changes and improvements in cooking confidence and knowledge. Limitations included the lack of a control group, no follow-up past after intervention, the use of nonvalidated assessment instruments, and small convenience samples.

DISCUSSION: Findings were similar to a previous review regarding positive impact on dietary and cooking confidence outcomes. Clinical and weight outcomes were addressed in more studies included in the current review than in the previous 1; however, limitations were similar.

CONCLUSIONS AND IMPLICATIONS: Intervention design and assessment tools need to be strengthened in intervention studies with cooking components.