Theodoor Scheepers specialises in food intolerance diagnostics and is a member of the ImuPro Scientific Advisory Board at Nutrition Care / r-Biopharm. He started more than 23 years ago as one of the first in Europe with ImuPro, the IgG allergy type III food test, worked for many years in the field of Lyme Disease, and is a member of the Deutsche Borreliose Gesellschaft. 

He has been a teacher of laboratory diagnostics at SOE (Foundation for Orthomolecular Education), due to his 44 years of laboratory experience. He is also an honorable member of the Dutch MBOG (Society for the Advancement of Orthomolecular Medicine).