Related Information

Like all Common Fund programs, the HMP serves a catalytic role, to stimulate growth and development of nascent biomedical fields. By 2011, four years after the initiation of HMP, seventeen NIH Institutes and Centers (ICs) were funding extramural research in the human microbiome field. The trans-NIH Microbiome Working Group (TMWG) was formed in 2012 to serve as a forum for the coordination of NIH human microbiome research. Visit the TMWG page to see a table of key points of contact at each IC funding microbiome research as well as a list of current microbiome-related FOAs.


Microscopic study of the healthy human body has demonstrated that microbial cells outnumber human cells by about ten to one. Until recently though, this abundant community of human-associated microbes remained largely unstudied, leaving their influence upon human development, physiology, immunity, and nutrition almost entirely unknown. The NIH Common Fund Human Microbiome Project (HMP) was established with the mission of generating research resources enabling comprehensive characterization of the human microbiota and analysis of their role in human health and disease. The information generated by HMP is made available worldwide for use by investigators and others in efforts to understand and improve human health.

The first phase of HMP was focused on the development of DNA sequence datasets and computational tools for characterizing the microbiome in healthy adults and in people specific microbiome-associated diseases.  An Ethical, Legal and Societal Implications (ELSI) program was also created to address the new and unexplored issues which arise from human microbiome research. The second phase of HMP, integrative HMP or iHMP, is focused on creating integrated datasets of multiple biological properties from both the microbiome and the host over time in specific microbiome associated diseases. The long-term objective of iHMP is to develop datasets and tools that the community can use to evaluate which biological properties of the microbiome and host will yield important new insights in understanding human health and disease. More information about the iHMP program can be found here or by visiting the iHMP website.

The three current iHMP projects are focused on:

For more information on the Human Microbiome Project, please e-mail


This page last reviewed on March 20, 2017