1. Introduction
  1.1 Background
  1.2 Research Objectives
  1.3 Significance of the Study

2. Literature Review
  2.1 Definition and Types of Malnutrition
  2.2 Brain Development during Early Childhood
  2.3 Impact of Malnutrition on Brain Development
  2.4 Cognitive Function and Malnutrition
  2.5 Existing Studies on the Effects of Malnutrition on Brain Development and Cognitive Function

3. Methodology
  3.1 Research Design
  3.2 Data Collection Methods
  3.3 Inclusion and Exclusion Criteria
  3.4 Data Analysis Plan

4. Results and Discussion
  4.1 Overview of Selected Studies
  4.2 Effects of Protein Deficiency on Brain Development and Cognitive Function
  4.3 Effects of Vitamin Deficiencies on Brain Development and Cognitive Function
  4.4 Effects of Mineral Deficiencies on Brain Development and Cognitive Function
  4.5 Summary of Findings

5. Implications and Recommendations
  5.1 Implications for Public Health Policies and Interventions
  5.2 Recommendations for Future Research
  5.3 Limitations of the Study