Legal Expert Witness

Dr. Kahan provides expert witness services and litigation support in cases involving obesity medicine, nutrition, preventive medicine, and public health.

With board certifications in Preventive Medicine, Obesity Medicine, and Clinical Nutrition, along with extensive academic and clinical experience, Dr. Kahan brings authoritative expertise to complex medical-legal matters.

His qualifications include 14 published books, faculty appointments at George Washington University and Johns Hopkins, and advisory roles with the White House, FDA, CMS, and the U.S. Congress.