Scientists cautious about effects of yerba mate
Yerba mate tea, made from a shrub widespread in South America, is causing discord among scientists regarding its health benefits. While the plant contains many vitamins, minerals and antioxidants, experts caution on comparisons with green tea. A recent review of existing studies confirmed that people who regularly drink large amounts of the tea, as much as a liter or more each day, had significantly increased risk of cancers of the esophagus, lungs, mouth, pharynx and larynx. Although the studies remain inconclusive, researhers urge to enjoy yerba mate in moderation.