large exposure.. HEXANE in Soy or Whey protein can be also cause of organ damage..

i know there is some Hexane for preprocessed whey from factory


“natural” soy proteins used in foods today are contaminated with a neurotoxic, highly-flammable industrial chemical known as hexane.

Hexane is a byproduct of gasoline classified as a major air pollutant by the Environmental Protection Agency. And yet, food manufacturers use hexane to separate whole soybeans into soy oil, soy protein and fiber.



http://www.atsdr.cdc.gov/tfacts113.html