We conducted a desk review guided by the Global Action Plan (GAP) on Wasting framework. The objective of the GAP is to reduce global wasting prevalence to less than 5 percent by 2025 and reduce global wasting prevalence to less than 3 percent by 2030. The GAP aims to achieve this outcome by targeting four key outcomes:

1. reduced incidence of low birth weight
2. improved child health
3. improved infant and young child feeding, and 
4. improved treatment of child wasting.

This brief presents evidence for effectiveness of health system approaches, documented considerations for implementation of the approaches, and areas for further research.