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Global Translational Medicine                                     Precision medicine via personalized nutrition



                                                               are used for various clinical conditions, such as inborn
                                                               errors of metabolism, progress in expanding omics data
                                                               has been limited. This hampers a deeper mechanistic
                                                               understanding of cellular networks influenced by nutrition-
                                                               driven gene expression and complete gene regulation. The
                                                               main challenge lies in the clinical sector, which should
                                                               integrate existing data, overcome the limitations of self-
                                                               reported procedures in research, and make omics data,
                                                               along with nutrigenetics and nutrigenomics research,
                                                               widely accessible. 20,26-29
                                                                 We have only recently started to recognize specific
                                                               gene–diet connections, as many clinical and molecular
                                                               phenotypes, such as body mass index, are influenced
                                                               by multiple genes. While nutrigenetics focuses on how
                                                               genetic variations impact metabolism, nutrigenomics
                                                               examines  how  nutrients  (food  compounds)  affect  gene
            Figure  6.  Multiomics data encompass information from various
            omics disciplines, including genomics, epigenomics, transcriptomics,   activity, assessing how mutations affect the assimilation
            proteomics, metabolomics, and phenomics. These data are derived   of metabolites. Recent advancements in genomics and
            from diverse assays and experiments, spanning multiple spatial and   PPM have led to a growing number of evidence-based
            temporal scales. While genomics has traditionally been a primary   applications with the potential to significantly reduce
            focus in personalized and precision medicine, other omics fields are
            increasingly contributing to a more comprehensive understanding of how   morbidity and mortality in millions of individuals.
            an individual’s complex biology influences their health. High-throughput   In summary, it is important to note that, in contrast
            multiomics technologies enable the collection of extensive and holistic   to general genomics-related achievements, nutritional
            biological data, whereas advanced computational tools facilitate high-
            dimensional data modeling, making analysis accessible and user-  genomics is still in its early stages compared with PPM.
            friendly. 18                                       However,  using  genomics  indicators  and  other clinical
                                                               tools represents a practical application of this emerging
                                                               technology. Meanwhile, advancements  in genomics
                                                               have led to the concept that a deeper understanding of
                                                               individual characteristics, such as genotype, can enable
                                                               more precise personalization of pharmaceutical and
                                                               nutritional therapies. PN is customized based on an
                                                               individual’s specific genetic profile, lifestyle, and health
                                                               objectives, in contrast to general dietary guidelines that
                                                               offer broad recommendations for the population as a
                                                               whole  (Figure 8).
                                                                    30
                                                                 It is crucial to recognize that current PN approaches
                                                               have achieved only limited scientific success in improving
                                                               dietary habits or addressing diet-related health conditions.
                                                               These strategies often target narrow population subgroups,
                                                               limiting their broader impact on public health. To
                                                               overcome this, a more holistic approach is needed—one
                                                               that integrates biomedical and dietary assessments with
                                                               psychobehavioral insights and innovative digital and
                                                               diagnostic technologies for comprehensive data collection.
                                                               An adaptive PN counseling system addresses this need
                                                               by combining biomedical and health phenotyping, stable
                                                               and dynamic behavioral indicators, and contextual food
                                                               environment data. This integration utilizes advanced
            Figure  7.  Genomics through the multipoint view of personalized and   digital tools, including sensors and AI-driven methods.
            precision medicine. Genomics provides valuable biological insights, as
            it  is  a  branch  of  life  sciences  focused  on  understanding  and  mapping   Such a system holds significant promise for transforming
            genomes.                                           individualized nutrition strategies into scalable, accessible


            Volume 4 Issue 3 (2025)                         65                          doi: 10.36922/GTM025080017
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