Evaluation of the Effectiveness of Nutritional Supplement Packages on Improving School Children's Hunger, Eating Behavior and Classroom Concentration

The goal of this intervention study is to learn whether providing nutritional supplement packs can reduce hunger at school and improve healthy eating behaviors and classroom concentration among students in grades 3-9 attending schools in remote rural areas. The main questions it aims to answer are: Does receiving nutritional supplement packs reduce hunger at school and improve healthy eating behaviors and classroom concentration after one semester and one school year compared with baseline? Is hunger at school associated with healthy eating behaviors and classroom concentration?

Inclusion Criteria: * Students in grades 3-9 who are eligible to receive nutritional supplement packs Exclusion Criteria: * Students who do not provide assent or whose parent or legal guardian does not provide informed consent.