Lothar Ursinus born in 1950, he has been one of the leading experts amongst alternative practitioners in Germany for more than 30 years. He runs his practice, the Naturheilzentrum Alstertal in Hamburg and is a co-founder of the of the laboratory for holistic medicine. He developed the individual nutrition program healthy & active, it is an innovative health concept that has been successful for ten years. He conveys this knowledge to alternative practitioners and physicians in numerous seminars and lectures.