Efforts to combat undernutrition in children and women globally have made headway, but persistent disparities exist, notably in low-income countries. Despite declining stunting and wasting rates, millions continue to be affected, primarily in South Asia and Africa. Concurrently, there is a concerning rise in obesity in low- and middle-income countries (LMICs), posing multifaceted health risks. The Reproductive, Maternal, Newborn, and Child Health continuum of care integrates nutrition interventions across various life stages, improving prenatal, postnatal, and childhood care. However, access to these services remains insufficient in many LMICs. Social protection mechanisms—such as in-kind food support, cash transfers, and voucher programs—not only alleviate poverty but also address underlying determinants of malnutrition. While school meal programs enhance nutritional knowledge and behaviors among children and adolescents, their direct impact on physical and cognitive growth remains debated. Voucher, subsidy, and cash transfer programs exhibit potential in improving food security and dietary diversity, albeit with varying effectiveness depending on the context and program design. Increased food access could inadvertently worsen issues like obesity due to poor dietary choices. Nonetheless, well-crafted localized social protection initiatives could address immediate nutritional challenges and foster long-term household resilience and socioeconomic empowerment.