Quote:
Originally Posted by Prestidigitweeze
Personally, I find it impossible to drink less than copious amounts of Yerba Maté once I start: All of the alertness of coffee with a better taste and none of the jitteriness or acidity. Very sad about those studies; perhaps they'll be disproved as more and more are conducted.
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This study seems to be the one you're referring to. It shows that Yerba Maté consumption may increase the risk of Squamous Cell Esophageal Cancer by 50%. But if you also drink alcohol and smoke tobacco a lot, the risk increases 600%.
"Subjects with high cumulative exposure to maté in the presence of low alcohol and tobacco exposures presented a lower-risk estimate (OR, 1.52; 95% CI, 0.88–2.62), whereas those with high cumulative exposures to maté, alcohol, and tobacco presented a 7-fold increase in esophageal cancer risk (OR, 7.10; 95% CI, 3.75–13.46)."
In short, the risks of cancer from alcohol and tobacco seem to be enhanced by Maté drinking.