Scientific Studies 

Our current understanding of what constitutes dangerous levels of toxic exposure is changing with the advent of new research. Here are some highlighted studies, organized by topic. 


Toxic Intolerance

Governments and organizations that must address chemical exposures, usually do so by establishing “safe” limits of chemical exposure. However, historically these limits have not taken into account existing sensitivities and past exposures in individuals.

Recent research has found that past exposures can create increased chemical sensitivity, which can then leave individuals vulnerable to lifelong intolerances and diseases. This is a significant finding, as in the last 100 years, chemicals in our environment, food, products and homes have increased, creating a potentially more vulnerable population overall.


Masri, S., Miller, C.S., Palmer, R.F. et al. Toxicant-induced loss of tolerance for chemicals, foods, and drugs: assessing patterns of exposure behind a global phenomenon. (2021)

Miller CS, Palmer RF, Dempsey TT, et al. Mast cell activation may explain many cases of chemical intolerance.(2021).