"Maté consumption plays a significant and independent role in the development of upper aeodigestive tract cancers," and "Maté drinking should be considered one of the risk factors for cancer of the neck and head."
Fowke JH.
Head and neck cancer: a case for inhibition by isothiocyanates and indoles from cruciferous vegetables.
Eur J Cancer Prev. 2007 Aug;16(4):348-56.
PMID: 17554208 [PubMed - in process]