Weak delivery systems reduce the potential of evidence-supported interventions to improve nutrition. We synthesized the evidence for the effectiveness of nutrition-specific intervention delivery platforms for improving nutrition outcomes in low and middle-income countries (LMIC). A systematic literature search for studies published from 1997 to June 2018 resulted in the inclusion of 83 randomized controlled trials (RCTs), quasi-randomized, and controlled before-after studies across a variety of delivery platforms. In this paper, we report on meta-analysed outcomes for community health worker (CHW) home visits and mother/peer group delivery platforms. Compared to care as usual, CHW home visits increased early initiation of breastfeeding (EIBF) (OR: 1.50; 95% CI: 1.12, 1.99; n = 10 RCTs) and exclusive breastfeeding (EBF) (OR: 4.42; 95% CI: 2.28, 8.56; n = 9 RCTs) and mother/peer groups were effective for improving children's minimum dietary diversity (OR: 2.34; 95% CI: 1.17, 4.70; n = 4) and minimum meal frequency (OR: 2.31; 95% CI: 1.61, 3.31; n = 3). Pooled estimates from studies using both home visit and group platforms showed positive results for EIBF (OR: 2.13; 95% CI: 1.12, 4.05; n = 9), EBF (OR: 2.43; 95% CI: 1.70, 3.46; n = 12), and < 5 wasting (OR: 0.77; 95% CI: 0.67, 0.89; n = 4). Our findings underscore the importance of interpersonal community platforms for improving infant and young child feeding practices and children's nutritional status in LMICs.Nutrients 2020, 12, 440 2 of 16 due to limited knowledge surrounding how best to integrate nutrition-focused interventions into these routine activities at the country level [13].Emerging evidence indicates that advancements in nutrition require nutrition-sensitive programmes that enhance the coverage and effectiveness of direct nutrition interventions [14]. Cash transfers requiring compliance with specific health/nutrition behaviours are commonly used in social protection/safety net programmes in LMICs [15,16]. Though evidence suggests they are effective for poverty reduction [14,17,18], there is limited high-quality evidence on the effectiveness of conditional cash transfers (CCTs) for improving nutrition-specific outcomes among women and children [19]. Mobile health (mHealth) technologies (e.g., SMS messaging) are increasingly being used in global nutrition programming, yielding potentially cross-cutting benefits through linkages with community and financial platforms [20]. However, knowledge gaps remain surrounding the effectiveness of mHealth platforms for delivering nutrition-specific interventions [21,22].We reviewed the available evidence to assess the effects of community-, financial-and technology-based nutrition intervention delivery platforms for improving nutrition outcomes in LMICs. In this paper, we report on meta-analysed outcomes for community health worker (CHW)/lay counselor home visits and mother/peer groups, which emerged as the most widely used community-based platforms for delivering nutrition-specific interventions in our review. Whil...