Before and after study of a national complementary and supplementary feeding programme in Rwanda, 2017–2021.

To address high rates of malnutrition among children from vulnerable households in Rwanda, the government initiated a national food supplementation programme. A before and after evaluation, using repeat cross‐sectional surveys in randomly selected villages was conducted; aimed at assessing the effectiveness of providing fortified blended food (FBF) to children 18–23 months of age, pregnant and lactating women in the lowest tier of Rwanda's social support system. Data were collected in 2017, 2018 and 2021 through interviews with caregivers; anthropometric measurements and a capillary blood sample were obtained from children. The primary statistical analysis compared the nutritional status of children before and after the introduction of FBF. We enroled 724 children during each survey. The prevalence of stunting declined from 47% to 35% between 2017 and 2021; in 2018, the prevalence of stunting was 43%. Children had a 42% reduction in the odds of being stunted (adjusted odds ratio [AOR]: 0.58, 95% confidence interval [CI]: 0.47–0.74, p < 0.001) from 2017 to 2021 even after adjusting for inherent, distal, proximal, and intermediate covariates. The reduction in stunting observed within the first year of the programme was not statistically significant (AOR: 0.83, 95% CI: 0.67–1.03, p < 0.091). We observed meaningful reductions in the prevalence of stunting among children which coincided with the introduction of Government‐led initiative to reduce malnutrition. The Rwandan Government has committed to improving the living conditions of vulnerable households and has made strong investments in reducing malnutrition. The impact of these investments can be seen in the overall trend towards improved nutritional status highlighted in this evaluation. Key messages: The national distribution of fortified blended food (FBF) to pregnant and lactating women and 6‐ to 23‐month‐old children living in the most vulnerable households was associated with a meaningful reduction in stunted linear growth, iron deficiency and anaemia among young children after 5 years.This study indicates that stunted linear growth, in early childhood, can be reduced over 5 years when the government is committed to and invests in improving the living conditions of vulnerable households, including the national food supplementation programme.It was attainable to distribute FBF to vulnerable pregnant and lactating women and 6‐ to 23‐month‐old children, in a national programme, over the 5‐year evaluation period, including during the COVID‐19 pandemic. [ABSTRACT FROM AUTHOR]