Dr. Calvo is a Medicine Doctor (MD) graduated in 1978 from the Medical School in Valladolid, one of the oldest medical schools in Spain.
He then worked for 2 years in the Immunology department of the “Fundación Jimenez Diaz-Clinica de La Concepción” in Madrid, Spain.
Afterwards he worked for 3 years at the Medical Center of Stanford University in California (see publications below) under the late Dr. Henry Kaplan, and later on he worked for 3 years at the Deutsches Krebs Forschung Zentrum (DKFZ, the German Cancer Research Center) and 2 more years at the “Professor Seelig Institute of Immunology” (Karlsruhe, Germany)
As he thinks that nutrition should be the solid foundation of all therapies, he studied the Gerson Therapy with Charlotte Gerson. In 1998 he completed the Practitioners Training Phase I in Arizona (USA) and afterwards the Practitioners Training Phase II in Meridien Hospital, training organized and directed by Charlotte Gerson and the Gerson Institute.
He has a master degree in Nutrition by Cadiz University in Spain.
He directed the “Clinic for Chronic Diseases” in Tenerife, Spain.
He has made learning visits and stages at the Riordan Clinic in Wichita, Kansas (one of the most experienced centers in integrative medicine and IV Vitamin C), USA; and has visited several times Dr Burt Berkson in Las Cruces, New Mexico, USA (the “father” of Alfa Lipoic Acid in his “Integrative Medical Center of New Mexico“), the Veritas Clinic in Lubbock, Texas, and Dr. Johann Lahodny Clinic in St Pölten, Austria, pioneer of the 10 pass, high dose ozone therapy.
He has worked in several medical fields: research, clinical medicine, emergency medicine and natural medicine.