Nutritional Science is the study of how food affects health and well-being. It encompasses various aspects, including the biochemical processes of digestion, metabolism, and the role of nutrients in disease prevention. By understanding these processes, nutritional scientists can develop guidelines for healthy eating and inform public health policies. This field also explores the relationship between diet and chronic diseases such as obesity, diabetes, and heart disease. Through research and clinical practice, professionals in Nutritional Science aim to promote optimal health and improve the quality of life for individuals and communities alike.