About The D’Adamo Institute

Welcome to the world renowned D’Adamo Institute for the Advancement of Natural Therapies – the most comprehensive natural health care service in North America. The Institute was founded in 1996 by the pioneering naturopath and the originator of The Blood Type Diet ® , Dr. James L. D’Adamo — and is the world’s first center for blood type-based research.

The Institute is nestled in the historic seacoast town of Portsmouth, New Hampshire surrounded by art galleries, boutiques, Inns, gourmet restaurants and cafés.

Our unique therapies, designed and based on Dr. D’Adamo’s groundbreaking Blood Type Diet®, is carried out by a team of multi-disciplinary specialists who continue to push relentlessly the boundaries of blood-type holistic treatment for a new generation of natural healing. We hope you will join more than 60,000 patients worldwide who have achieved optimum health by following Dr. D’Adamo’s Blood Type Diet ® program.

During your visit you can take full advantage of our customized programs, designed to meet your needs and your blood-type regimen.

The D’Adamo Institute remains the world’s first center for blood type-based research, continuing to push relentlessly the boundaries of blood-type holistic treatment for a new generation of natural healing.

The Institute’s sole purpose is to help patients maintain optimal health and improve their overall life experience.

Institute founder, Dr. James L. D'Adamo explains about the Institute's offerings

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