Ready-to-use supplementary food increases fat mass and BMI in Haitian school-aged children.

Background: In Haiti and other countries, large-scale investments in school feeding programs have been made with marginal evidence of nutrition outcomes.

Objective: We aimed to examine the effectiveness of a fortified ready-to-use supplementary food (RUSF), Mamba, on reduced anemia and improved body composition in school-aged children compared to an unfortified cereal bar, Tablet Yo, and control groups.

Methods: A cluster, randomized trial with children ages 3-13 y (n = 1167) was conducted in the north of Haiti.