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As studies examining the effectiveness of food security interventions collectively are sparse, this review examined the most effective community-based and system-level interventions that have increased nutritious food consumption across food-insecure populations. Following PRISMA-guidelines, 22 articles included were classified into six categories: Educational and Behavioral Programs; Fresh Fruit and Vegetable Programs; Summer Electronic Benefits Transfer; Discounted Food Options; Emergency Food Assistance Programs; and Multicomponent Programs. This review concludes that future considerations for positively impacting food security and nutritious food intake should give attention to community and system-level multicomponent interventions that address the specific social and economic barriers facing the target population. [ABSTRACT FROM AUTHOR]