Homegrown crops have been promoted in Tanzanian commune communities as a strategy to improve nutrition outcomes through increased local food production and consumption. The analysis was conducted using data from multiple randomized controlled trials (RCTs) and observational studies published in peer-reviewed journals between and . Studies were included if they reported both homegrown crop adoption metrics and nutrition-related health outcomes. A proportion of 78% of participants adopted at least one new homegrown crop variety, with significant improvements in dietary diversity observed (p < 0.05), indicating a positive impact on overall nutritional status. Homegrown crops promotion programmes show promise for enhancing nutrition outcomes, particularly through increased adoption and diversified diet consumption. Further research should focus on long-term sustainability strategies to maintain homegrown crop adoption rates and monitor the broader socioeconomic impacts of these interventions. homegrown crops, nutrition interventions, Tanzanian communities, meta-analysis, dietary diversity Treatment effect was estimated with $\text{logit}(p_i)=\beta_0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.