What is yerba mate tea?
This South American drink, also known as mate, is an herbal tea made by steeping dried leaves from the yerba mate plant in hot water. It can be served cold or hot. Like black or green tea, it has caffeine, which can make you feel more alert and focused. Drinking this tea isn’t linked to health problems in most adults. A daily cup with three grams of leaves may be safe for up to 12 weeks. Some studies suggest it may have helpful effects on cholesterol, weight loss, the heart, inflammation and cancer risk. But more research is needed to confirm these links.
Typical consumption
South Americans safely drink upwards of 1–4 liters of this drink per day. In United States, Canada, and Europe, it’s not uncommon for an avid drinker to consume at least 1–2 liters per day. The amount you consume daily will mainly depend on your own tolerance and preference.
This is an herb, like oregano, mint and parsley. The Earth abounds with consumable herbs that we generously enjoy without hesitation.
Potential benefits
This tea is a healthy, nutrient-rich, and energizing drink. Many people in South America drink it every day and it is also becoming more popular globally.
Causes of cancer
What studies have found is that the temperature it’s consumed at, not the drink itself, is the main cause. In South American countries it’s drunk at 158-185°F, hot temperatures that increase esophageal cancer risk with any liquid. Considering South Americans drink 1-3 liters daily, it’s reasonable esophageal cancer is a major health issue there.
Researchers now theorize cancers mainly result from compounds in the hot drink. Cancers usually result from genetic predisposition and what an individual consumes and is exposed to. Cell damage from very hot tea could enhance the compound’s carcinogenic effect, increasing esophageal cancer risk.
While studies associate this drink with cancer, specifically in smokers and drinkers who drink hot mate, it’s difficult to specifically point it out. A 2015 study found hot food consumption associated with increased esophageal cancer risk. Esophageal cancer has two types.
Interpreting the evidence
Drinking large amounts long-term increases some cancer risks, especially for smokers and drinkers. While it has potential carcinogens, interpreting the evidence objectively and scientifically is crucial.
Summary
Some research suggests it may have health benefits. But more studies are needed. It has antioxidants and won’t stain teeth. Drinking hot mate may increase cancer risk. More research is needed.
It has compounds that provide health benefits but may also cause side effects if consumed excessively. The cancer risk may be from drinking it at very hot temperatures over 158°F, not the drink itself. More research at moderate temperatures is needed.
It is rich in antioxidants and may provide energy, focus, and other benefits. But potential side effects like insomnia can occur if consumed in excess or too late in the day. Moderation and avoiding drinking it in the evening is recommended.