Genetics and Epigenetics in Personalized Nutrition: Evidence, Expectations, and Experiences
Christina Holzapfel,* Melanie Waldenberger, Stefan Lorkowski, Hannelore Daniel, the
Working Group “Personalized Nutrition” of the German Nutrition Society. Genetics and Epigenetics in Personalized Nutrition:
Evidence, Expectations, and Experiences. Mol. Nutr. Food Res. 2022, 66, 2200077
Here, the state of evidence for the effect of genetic and epigenetic factors in the development of obesity, the metabolic syndrome, and resulting illnesses such as non-insulin-dependent diabetes mellitus and cardiovascular diseases is summarized. This study also critically value the concepts of PN that are built around the new genetic avenue from both the academic and a commercial perspective and their effectiveness in causing sustained changes in diet, lifestyle, and for improving health. Despite almost 20 years of research and commercial direct-to-consumer offerings, evidence for the success of gene-based dietary recommendations is still generally lacking. This calls for new concepts of future PN solutions that incorporate more phenotypic measures and provide a panel of instruments (e.g., self- and bio-monitoring tools, feedback systems, algorithms based on artificial intelligence) that increases compliance based on the individual ́s physical and social environment and value system.