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This article explores the fundamental principles of nutritional epidemiology and its pivotal role in shaping public health policies. Nutritional epidemiology investigates the intricate relationship between dietary habits and the occurrence of diseases within populations. The methodologies employed, including observational studies, dietary assessments, and biomarkers, are discussed, along with the challenges associated with the complexity of dietary patterns and individual responses [1]. Despite these challenges, nutritional epidemiology serves as a cornerstone for evidence-based policymaking, influencing guidelines and interventions aimed at promoting healthier dietary practices and reducing the burden of diet-related diseases. The article concludes by emphasizing the dynamic nature of this field and its potential to inform targeted strategies for improving public health [2].
