Researchers systematically reviewed 15 studies conducted in slums or poor urban and periurban areas to determine nutritional interventions that can prevent stunting of infants and young children who are high-risk populations. Despite finding that nutrient supplementation for mothers had no effect on birth weight and length, the authors found that maternal education interventions seemed to improve birth weight. Researchers found inconclusive results around using nutrient supplementation for children and improving health systems to improve stunting status.