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Onion Guide

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Onion raises no health concern because:

  • It is not on any of GoodGuide’s lists of toxic chemicals which cause suspected or recognized health effects
  • It has not been detected in human tissue or urine
  • It is not a high production volume chemical that lacks safety data

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From Wikipedia

Onion is a term used for many plants in the genus Allium. They are known by the common name "onion" but, used without qualifiers, it usually refers to Allium cepa.[1]Allium cepa is also known as the "garden onion" or "bulb" onion. It is grown underground by the plant as a vertical shoot that is used for food storage, leading to the possibility of confusion with a tuber, which it is not.

Allium cepa is known only in cultivation,[2] but related wild species occur in Central Asia. The most closely related species include Allium vavilovii (Popov & Vved.) and Allium asarense (R.M. Fritsch & Matin) from Iran.[3] However, Zohary and Hopf warn that "there are doubts whether the vavilovii collections tested represent genuine wild material or only feral derivatives of the crop."[4]...

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