Assertion: angostura bitter | /r/RelatedTo | angostura bark
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text: Angostura bitters is often incorrectly believed to have poisonous qualities because it is associated with angostura bark (although it does not actually contain any), which, although not toxic, during its use as a medicine was often adulterated by unscrupulous sellers, who padded out the sacks of bark with cheaper, poisonous Strychnos nux-vomica or copalchi bark.