Monitoring, supervision, and evaluation are important parts of nutrition programs to ensure quality and effectiveness. Data is collected through the Nutrition Information System (NIS) and flows from communities to districts and provinces to assess key indicators like cure, death, and default rates against SPHERE standards. SQUEAC surveys help evaluate coverage and identify issues like low participation, high default rates, or mortality to improve programs. Regular reporting and review of data allows supervisors to monitor performance and make improvements through tools like checklists, reports, and output trackers.