Metabolic profiles in nutritional research analyze metabolites—small molecules formed through cellular metabolic processes—to assess an individual's health and response to diet. These profiles offer valuable insights into nutrient metabolism, energy production, and immune response, helping researchers understand how diet influences overall health. For instance, profiling can reveal how efficiently the body metabolizes carbohydrates, proteins, and fats, which can help tailor nutritional recommendations for weight management, diabetes prevention, or improved athletic performance. Metabolic profiling allows scientists to assess the effects of specific diets, like low-carb or Mediterranean diets, on individual health markers. Advances in metabolomics provide detailed data that help develop personalized dietary plans, addressing unique metabolic needs and improving public health outcomes.