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Despite the many benefits of drinking yerba mate tea, excessive and regular use of this tea does present some health concerns. The side effects and risks include:
Heart Risk: There could be a risk to the heart, due to the high content of caffeine. Even though there is approximately 80 mg of caffeine found in yerba mate, as compared to 100-200 mg in a cup of coffee, yerba mate tea is often consumed throughout the day, with 4 or 5 cups not being an unusual amount for daily consumption. This consistent caffeine boost to the system can take a toll on the cardiovascular system, and be dangerous for those who already have high blood pressure.
Cancer Risk: Polycyclic aromatic hydrocarbons (PAHs) have been associated with an increased risk of cancer. It is important to make sure that yerba mate during processing does not get contaminated by PAHs as that may pose a risk of cancer of oral cavity, esophagus, larynx. It may also increase he risk of upper intestinal tract cancer over the long term.
Pregnant Women and Children: It is not safe for children as well as pregnant women. It may also be avoided by women during breastfeeding post-delivery.
Liver: Long-term and heavy use may harm liver function and may lead to liver disease.
And generally speaking, it can safely be consumed in small to moderate quantities to enjoy its benefits, but before making it a regular part of your health regimen, it is best to speak to your doctor. *
