Home gardening improves dietary diversity, a cluster‐randomized controlled trial among Tanzanian women

Bibliographic Data

ID15536733
AuthorsMia M Blakstad (0000-0002-5915-099X, Harvard Global Health Institute, corresponding author), Dominic Mosha (0000-0001-7258-9289, Ifakara Health Institute), Alexandra L Bellows (0000-0001-7772-7548, Harvard Global Health Institute), Chelsey R Canavan (0000-0002-1372-9015, Harvard Global Health Institute), Jarvis T Chen (0000-0002-7412-1783, Harvard University), Killian Mlalama (0000-0001-7701-1830, Ifakara Health Institute), Ramadhani Noor (0000-0001-6479-1452, Harvard University), Ramadhani A Noor (Department of Nutrition Harvard T. H. Chan School of Public Health Boston Massachusetts USA), Joyce Kinabo (0000-0003-1559-9143, Sokoine University of Agriculture), Honorati Masanja (0000-0002-3860-7348, Ifakara Health Institute), Wafaie W Fawzi (0000-0002-2908-600X, Harvard University)
Year2020
Volume17
Issue2
Pagese13096-e13096
Publication date2020-11-26
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueMaternal and Child Nutrition (JOURNAL)
Journal identifiersISSN: 1740-8695 • E-ISSN: 1740-8709
PublisherWiley (PUBLISHER • GB)
DOI10.1111/mcn.13096
PMID33241924
OpenAlexW3106665578
LanguageEN
Citations received10
References cited34

Homestead food production (HFP) programmes improve the availability of vegetables by providing training in growing nutrient-dense crops. In rural Tanzania, most foods consumed are carbohydrate-rich staples with low micronutrient concentrations. This cluster-randomized controlled trial investigated whether women growing home gardens have higher dietary diversity, household food security or probability of consuming nutrient-rich food groups than women in a control group. We enrolled 1,006 women of reproductive age in 10 villages in Pwani Region in eastern Tanzania, split between intervention (INT) and control (CON) groups. INT received (a) agricultural training and inputs to promote HFP and dietary diversity and (b) nutrition and public health counselling from agricultural extension workers and community health workers. CON received standard services provided by agriculture and health workers. Results were analysed using linear regression models with propensity weighting adjusting for individual-level confounders and differential loss to follow up. Women in INT consumed 0.50 (95% CI [0.20, 0.80], p = 0.001) more food groups per day than women in CON. Women in INT were also 14 percentage points (95% CI [6, 22], p = 0.001) more likely to consume at least five food groups per day, and INT households were 6 percentage points (95% CI [-13, 0], p = 0.059) less likely to experience moderate-to-severe food insecurity compared with CON. This home gardening intervention had positive effects on diet quality and food security after 1 year. Future research should explore whether impact is sustained over time as well as the effects of home garden interventions on additional measures of nutritional status

Cluster (spacecraft · Cluster randomised controlled trial · Dietary diversity · Diversity (politics · Environmental health · Randomized controlled trial · Child Nutrition and Water Access · Food Security and Health in Diverse Populations · Medicine · Obesity, Physical Activity, Diet · Ecology · Internal Medicine