Does stevia need a hechsher?

Answer: Yes (cRc).

Reason: cRc lists it as requiring certification.

Source:

• cRc: stevia requires kosher certification.

Related questions:

• Does sugar need a hechsher? No (Star-K, cRc).
• Does agave need a hechsher? cRc lists agave nectar as requiring certification, and agave syrup as acceptable without hashgachah if there are no questionable additives..

References: cRc (askcrc.org), “Stevia”