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Nutrition Response Testing

Health Is Your Natural State of Being

Dr. Mark Holtschlag

Dr. Mark Holtschlag

Dr. Mark is a 1981 honors graduate of Palmer College of Chiropractic in Davenport, IA. He attended the University of Illinois in the Pre-Med Program and decided that drugs and surgery was not something he wanted to be involved with.


Nutrition Response Tester

Quincy, IL

Whole food-based nutrition - just as nature intended.

Support your well-being with all of your favorite Standard Process supplements.

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Standard Process Products

Contact Us

2000 Jefferson St. Quincy, IL 62301

Email 217-228-2040