Nutritional molecular profiling involves analyzing an individual’s cellular response to dietary intake at the molecular level. This profile can reveal how well the body absorbs, utilizes, and responds to nutrients, providing valuable insights into metabolic health and potential deficiencies. Through molecular profiling, scientists can monitor specific markers like gene expression levels, enzyme activity, and cellular metabolites to assess how different diets impact health. This approach enables the customization of dietary plans to improve individual health, address nutrient deficiencies, and reduce disease risk. It also supports the development of nutraceuticals and personalized health supplements that cater to specific molecular needs, contributing to advanced preventative health strategies.