Special Collections and University Archives
UMass Amherst Libraries

Isabel Jansen Papers, ca.1950-1985

12.5 boxes (19 linear feet)
Call no.: MS 613

A Registered Nurse and surgical assistant at Marquette University Medical and Dental Schools, Isabel Jansen was a long-time opponent of fluoridation of drinking water. In 1949, her hometown of Antigo, Wisconsin, became one of the first in the state to put fluorides in its water supply. Jansen emerged as a prominent voice in opposition, arguing that fluorides had a cumulative toxic effect when ingested over a long period, and using public health data, she concluded that fluoridation was strongly correlated with an increase in mortality from heart disease and with a variety of other deleterious health effects. In 1960, she succeeded in ending fluoridation, however after a follow up survey showed a dramatic rise in tooth decay, Antigo residents voted five years later to reintroduce fluoride. Jansen has continued a vigorous resistance, publishing a series of articles on the public health impact and Fluoridation : A Modern Procrustean Practice (1990) and .

The Jansen Papers include a range of correspondence, newsclippings, articles, and notes regarding Isabel Jansen’s long struggle against the fluoridation of drinking water.

  • Antifluoridation movement--Wisconsin
  • Fluorides–Environmental aspects
  • Fluorides–Toxicology
  • Jansen, Isabel

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