The latest Series on Maternal and Child Under nutrition Progress, includes three new papers that build upon findings from the previous 2008 and 2013 Series, which established an evidence-based global agenda for tackling under nutrition over the past decade. The papers conclude that despite modest progress in some areas, maternal and child under nutrition remains a major global health concern, particularly as recent gains may be offset by the COVID-19 pandemic. The Series reiterates that previously highlighted interventions continue to be effective at reducing stunting, micronutrient deficiencies, and child deaths and emphasizes the importance of delivering these nutrition interventions within the first 1,000 days of life. However, despite this evidence, program delivery has lagged behind the science and further financing is needed to scale up proven interventions…Readmore