Assertion: bracken | /r/CapableOf | denature harmless
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Source sentences:
text: Even though most of the research out there suggests that normal human methods of eating bracken, which, incidentally, has been eaten by cultures across the globe since prehistory, denature or render harmless what ptaquiloside exists in a bracken fiddlehead, there is one nagging piece of data out there: There is an apparent link between chronic consumption of bracken and an increased level of throat and gastric cancers in the populations of Korea, Japan and parts of China.