Matthias Rath (born 1955 in Stuttgart / Germany) is a controversial German physician, businessman, vitamin entrepreneur and politician. He is the inventor of an alternative medicine, the so called ""cellular medicine" (in German: Zellularmedizin) which according to Rath allegedly "heals" severe deseases like AIDS or cancer. This doctrine can been seen as an interpretation of orthomolecular medicine (OM).
Rath runs the "Dr. Rath Health Foundation" which was closely associated with "Health Now" Inc., and he also founded a "Dr. Rath Research Institute". In Europe, his products are sold from The Netherlands.