Abstract
In this final chapter, the current state of the art in metabolic phenotyping is summarized. The challenges for future integration of the topic into mainstream clinical and health studies are delineated and discussed. These include the need for validation, standard protocols, and the problems associated with “big data.” The prospects for metabolic phenotyping in clinical and epidemiologic studies are described. Potential new phenotyping outputs and possible impacts of metabolic phenotyping on medicine are listed.