Diet; Metabolism, Inborn Errors/diet therapy; Nutritional Physiological Phenomena; Dietary Supplements; Disease Management; Drug Administration Routes; Humans; Metabolism, Inborn Errors/genetics; Rare Diseases; United States

ACA; CDER; CER; CTSA; Center for Drug Evaluation and Research; Clinical and Translational Science Award; Comparative Effectiveness Research; DSHEA; Dietary Supplement Health and Education Act; Dietary supplements; Eunice Kennedy Shriver National Institute of Child Health and Human Development; FD&C Act; FDA; Federal Food, Drug and Cosmetic Act; Food and Drug Administration; GPCI; GRDR; Genetic; Genetics in Primary Care Institute; Global Rare Disease Patient Registry and Data Repository; HIE; HRSA; Health Resources and Services Administration; IEM; IRB; Inborn errors of metabolism; LTFU; Medical foods; NBSTRN; NCATS; NICHD; NIH; National Center for Advancing Translational Sciences; National Institutes of Health; Newborn Screening Translational Research Network; Newborn screening; ODA; ODS; OOPD; ORDR; Office of Dietary Supplements; Office of Orphan Product Development; Office of Rare Diseases Research; Orphan Drug Act; PAH; PCMH; PCORI; PHE; PKU; Patient Protection and Affordable Care Act; Patient-Centered Outcomes Research Institute; RDCRN; RDP; Rare Diseases Clinical Research Network; Rare Diseases Program; Rare diseases; health information exchange; inborn errors of metabolism; institutional review board; long-term follow-up; patient-centered medical home; phenylalanine; phenylalanine hydroxylase; phenylketonuria