Effectiveness of Gardening-Only, Cooking-Only and Combined Cooking and Gardening Programs in Elementary Schools to Improve Fruit and Vegetable Intake: A Systematic Review

Nutrients. 2023 Jun 30;15(13):3008. doi: 10.3390/nu15133008.

Abstract

The objective is to compare the gardening, cooking, and combined cooking and gardening programs in elementary schools from the past decade (2011-2022) in improving six psychosocial and behavioral outcomes related to fruit and vegetable intake. This review was conducted following the PRISMA guidelines. Five scientific databases were searched to identify 4763 potential articles, 44 articles were retained after screening the studies' abstract, and 36 articles were included after further investigation into each intervention. This review included 9 gardening-only programs, 8 cooking-only programs, and 19 combined cooking and gardening programs. The included studies were from 14 different countries with half of these studies took place in the United States (n = 18). Of the outcomes assessed, 100% (10/10) of the studies were effective in improving knowledge/skills, 90% effective in improving attitudes and self-efficacy to consume F and V (9/10), 80% produced significant results for gardening and cooking attitudes/behaviors (8/10) and willingness to try F and V (4/5), 68% (11/16) programs resulted in increase in F and V intake, and 62% (10/16) programs improved F and V preference. This review suggests that gardening-only programs (89%) and cooking-only programs (88%) were slightly more effective in producing significant findings compared to combined programs (84%), but more high-quality interventions are needed to confirm these findings.

Keywords: children; cooking; elementary schools; fruits and vegetables; gardening.

Publication types

  • Systematic Review
  • Review

MeSH terms

  • Cooking
  • Diet*
  • Fruit*
  • Gardening / methods
  • Health Promotion / methods
  • Schools
  • Vegetables

Grants and funding

No funds were needed to conduct this systematic review as a faculty researcher and her students explored and analyzed the relevant literature in detail and did not have to carry out any new studies.