Personalized nutrition and its roles on some metabolic disorders: A narrative review

Introduction: Considering an individual’s characteristics such as genetics along with other characteristics and dietary habits can help to provide an effective diet for prevention and controlling metabolic disorders. Accordingly, in the present study, we aimed to review evidence on personalized nutrition (PN) and its roles in metabolic disorders. Materials and Methods: In the present narrative review, publications on PN and metabolic disorders published between 2010 and 2020 using PubMed, Scopus, and Google Scholar were searched and collected. Results: Our findings showed positive effects of precision medicine and PN on controlling metabolic disorders, diabetes, postprandial glucose level, obesity, and lipid profile. Interactions of genetic differences, lifestyle, microbiota patterns, and behavioral and psychological characteristics can affect developing and controlling diseases. Conclusion: Due to the effects of genetics, gut microbiota, and other individual characteristics in designing and providing a suitable diet, paying attention to PN in the prevention and controlling metabolic disorders is important. PN vs. general dietary recommendations or diet can be more effective; although it needs high expenditure and more equipment.