Masters of the Institute for Human Individuality (MIFHI) are health professionals who have completed certification in both basic and advanced nutrigenomics and polymorphic sciences. Masters of the Institute are Senior Fellows, are eligible for sponsored research funding, and are fully capable of teaching the principles of nutrigenomics and polymorphic science to both other scientists and the general public. Many Masters have fully integrated the principles of IfHI into their professional practices.

Masters of the Institute train directly with Dr. D'Adamo and other members of the IfHI faculty, through direct preceptorships with Dr. D'Adamo at the D'Adamo Clinic, and specialized advanced training seminars. Masters of the Institute enjoy voting privileges and often chair specialized IfHI subcommittees.