Purpose: This research aims to examine effective pedagogical methods for promoting healthy dietary practices among elementary students. By reviewing the literature, the study will identify key factors influencing children's eating habits, assess treatment impacts on eating patterns and metabolism in obese children, and explore how breakfast quality affects the health of children and teenagers. Method: This study analyses pertinent literature on encouraging healthy eating habits in primary school students using a systematic review and meta-analysis methodology. Comprehensive searches of electronic databases, such as PubMed, PsycINFO, and Web of Science, are part of the systematic review process to find pertinent research published in peer-reviewed journals. The inclusion criteria cover research on instructional methods, tactics, and interventions intended to encourage primary school students to eat healthily. Result: The outcomes of the meta-analysis and systematic review point to several successful instructional methods and tactics for encouraging primary school students to eat healthily. Children's eating habits are influenced by several factors, and treatments that focus on diet and metabolic responses, especially in obese kids, seem to be working well. The study also emphasizes how important a healthy breakfast is to kids' and teens' overall health and well-being. Conclusions: The study concludes that raising lifelong good eating habits in primary school students requires comprehensive strategies incorporating nutritional education, parental involvement, and community support. The results have significant ramifications for educators, legislators, and medical professionals who work to encourage children to adopt healthy habits. To investigate the long-term impacts of interventions and create specialized tactics for a range of populations, more study is necessary.