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Sourcing the Menu: Background on GMO

NOTE: This is an edited version of portions of Appendices 3 of the “Revised Stealth Syndromes Study Protocol as approved by the University of California San Francisco Medical School Committee on Human Research.


We will avoid products known to have GMO ingredients.

While the debate on potential negative effects has not reached a scientific consensus, the debate over the significance of regulatory limits and low levels (nano-and picomolar) parallels earlier work done on endocrine disruptors.

GMO ingredients raise two issues for this study:

(1) GMO crops are designed to withstand levels of pesticides such as glyphosate which would kill non-GMO plants. As such, glyphosate is becoming common in foods sold in the marketplace

Rubio F, Guo E, Kamp L (2014) Survey of Glyphosate Residues in Honey, Corn and Soy Products. J Environ Anal Toxicol 4: 249. doi: 10.4172/2161-0525.1000249

Glyphosate residues in Swiss market foods: monitoring and risk evaluation Otmar Zoller , Peter Rhyn, Heinz Rupp, Jürg A. Zarn & Christoph Geiser Pages 83-91 | Received 14 Sep 2017, Accepted 17 Dec 2017, Accepted author version posted online: 28 Dec 2017, Published online: 23 Jan 2018

(2) Evidence is accumulating that GMO plants may not be as safe as initially warranted. Zdziarski, I.M., Carman, J.A. and Edwards, J.W. (2018) Histopathological Investigation of the Stomach of Rats Fed a 60% Genetically Modified Corn Diet. Food and Nutrition Sciences, 9, 763-796. https://doi.org/10.4236/fns.2018.96058