Dr. Niwa

Dr. Niwa ist ein bekannter Arzt und Forscher aus Japan, welcher mit seinen Erkenntnissen über die Auswirkungen von freien Radikalen weltweit für Aufsehen sorgte. Im Rahmen seiner über 30-jährigen Forschungstätigkeit konnte er nachweisen, dass die meisten Krankheiten sowie der Alterungsprozess durch freie Radikale verursacht werden.
Dr. Niwa führt in Japan sein eigenes Spital sowie 9 Kliniken. Dort werden Haut- und Immunkrankheiten sowie Krebs mit vorwiegend natürlichen Medikamenten behandelt. 

Medical School (graduation): The Medical Department, Kyoto University, Kyoto, Japan 

Doctor of Medical Science: Yukie Niwa, M.D., D.M.S. Obtained from Kyoto University, 1976

 Professional Society Memberships:

- Japanese Society for Immunology

- The Japan Society for Clinical Immunology

- Japanese Society of Allergology

- The Japanese Society of Inflammation and Regeneration

- Japanese Society of Hematology

- The Japanese Society of Internal Medicine

- Japanese Dermatological Association

- The Japanese Society for Investigative Dermatology

- Japan College of Rheumatology

- The Japanese Biochemical Society

- Japanese Cancer Association

- Japan Society of Clinical Oncology

 Past Appointments: - Clinical Physician in the Department of Dermatology in Kyoto University, 1963-1965

- Clinical Physician in the Department of Dermatology in Osaka Red Cross Hospital, 1965-1972

- Adjunct Professor of 3rd Internal Medicine, Shimane Medical University, 1980-1987

- Adjunct Professor of Dermatology, Kansai Medical University, 1983-2007

- Adjunct Professor of the Department of 1st Internal Medicine of Aichi Medical University, 1987-1990

- Adjunct Professor of the Doctor course of medical department of Kobe University, 1992-1994

- Adjunct Professor of Molecular and Cell Structural Science (Anatomy), Kanazawa Medical University, 2003-2007

Present Appointments: - Head of Niwa Institute for Immunology, 1974 to present

- Director of Tosashimizu Hospital and other 9 clinics in Japan


- Pioneer in the study of Reactive Oxygen Species and the SOD Enzyme


- Specialized in the treatment and research of atopic dermatitis, rheumatism and all kinds of cancer forms

Developed anticancer agents and small molecule antioxidants such as SOD like actions foods.


 - More than 70 research papers in International Medical Magazines in English.

- Published many books on Reactive Oxygen Species and Atopic Dermetitis. Some books were translated into English and Korean.


 - Behcet’s Disease Research Committee of Japan, Ministry of Welfare, Japan, 1982-1987 

The Niwa treatment was admitted, and published in international cancer technical journal "INTEGRATIVE CANCER THERAPIES" in 2012.

Integrative Cancer Therapies

Evidence That Naturopathic Therapy Including Cordyceps Sinensis Prolongs Survival of Patients With Hepatocellular Carcinoma

Dr. Yukie (Kozo) Niwa


The Book “Niwa Therapy; Prolonging Life without Side Effect” Page 88

One of his natural medicaments

Cordyceps Sinensis (Brand names are Tohzan, NK-3, Tohchu-jo, and Tohchu Extract).

The active ingredient of Cordyceps Sinensis is a substance called cordycepin. The cordycepin I use is not chemically produced. I use naturally grown Cordyceps Sinensis, which goes through the process of heating, brewing and lipophilisation. Cordyceps Sinensis is a parasitic fungus that infects insects. It has long been used in traditional Chinese medicine. The active ingredient of Cordyceps Sinensis has been the subject of research around the world since 1950. The key factor seems to be the hydroxyl group (OH) attached to the third carbon (C) of the ribose in the structure of adenosine, a key component of DNA (Diagram 8).

It was discovered, over forty years ago, that cordycepin has an effect on cancer in both humans and animals. This has also been proven by in vitro analysis. By comparing the structures of cordycepin and adenosine (Diagram 8), one notices that the C3 of cordycepin has a hydrogen (H) attached to it instead of an OH. 

Otherwise, the two structures are the same. When Cordyceps Sinensis is taken into the body, the DNA of dividing cancer cells will accept the cordycepin and incorporate it, as the structures are very similar. However, because of the difference between the OH and the H, the cordycepin will interfere with the cancer cells' DNA and stop the cancer cells multiplying.

Other anticancer effects of Cordyceps Sinensis have been reported on different tumour cell lines and rodent systems, including inhibition of polyadenylation, stimulation of adenosine A3 receptors and the induction of apoptosis (the active and functional death of cells). 

Cordyceps Sinensis is the most outstanding medicine with the strongest anticancer effect out of all the medicines used in Niwa Therapy (including for liver cancer patients).

It is also effective against violent viral diseases such as AIDS and SARS. Also, for genetically abnormal diseases (cystic psoriasis, Darie's disease), Western medicine has only harsh chemicals that can cause malformed children, but the author's processed Cordiceps sinensis is effective.

Tosa Niwa Clinic in Japan