What is Yerba Mate ?
Yerba mate is an herbal tea made from the leaves and twigs of the Ilex paraguariensis plant.
The leaves are typically dried over a fire, then steeped in hot water to make the tea.
Yerba mate is traditionally consumed from a container called a gourd and sipped with a metal straw that has a filter at its lower end to strain out the leaf fragments.
Sharing it from this traditional gourd is said to be a sign of friendship and bonding.
Yerba mate contains several beneficial plant nutrients, including (
- Xanthines: These compounds act as stimulants. They include caffeine and theobromine, which are also found in tea, coffee, and chocolate.
- Caffeoyl derivatives: These compounds are the main health-promoting antioxidants in the tea.
- Saponins: These bitter compounds have certain anti-inflammatory and cholesterol-lowering properties.
- Polyphenols: This is a large group of antioxidants, linked to a reduced risk of many diseases.
Interestingly, the antioxidant power of yerba mate tea seems to be slightly higher than that of green tea (
What’s more, yerba mate may contain seven out of nine essential amino acids, in addition to nearly every vitamin and mineral your body needs (
However, the tea contains very small amounts of these nutrients, so it’s unlikely to make a large contribution to your diet on its own.
2. Can Boost Energy and Improve Mental Focus
At 85 mg of caffeine per cup, yerba mate contains less caffeine than coffee but more than a cup of tea (4).
Therefore, just like any other caffeinated food or beverage, it may increase your energy levels and make you feel less tired.
Caffeine can also affect the levels of certain signaling molecules in your brain, making it particularly beneficial for your mental focus (
Several human studies observed improved alertness, short-term recall and reaction time in participants who consumed a single dose containing 37.5–450 mg of caffeine (
Additionally, those who regularly consume yerba mate often rave that it enhances alertness like coffee — but without the jittery side effects.
However, these testimonials have not yet been scientifically proven.
3. May Enhance Physical Performance
Caffeine is also known to improve muscle contractions, reduce fatigue, and improve sports performance by up to 5% (
Since yerba mate contains a moderate amount of caffeine, those drinking it can expect similar physical performance benefits.
In fact, in one study, those given one 1-gram capsule of ground yerba mate leaves right before exercise burned 24% more fat during moderate-intensity exercise (
A higher reliance on fat for fuel during exercise spares your carb reserves for critical high-intensity moments, such as cycling up a hill or sprinting towards the finish line. This could translate into better sports performance.
The optimal amount of yerba mate to drink before exercise is currently unknown.
Yerba mate may help prevent infections from bacteria, parasites, and fungi.
One test-tube study found that a high dose of yerba mate extract deactivated E. coli, a bacteria that causes food poisoning symptoms like stomach cramps and diarrhea (
Compounds in yerba mate may also prevent the growth of Malassezia furfur, a fungus responsible for scaly skin, dandruff, and certain skin rashes (
Finally, research suggests that compounds in it may provide some protection against intestinal parasites (
Nevertheless, most of these studies were done on isolated cells. It’s currently unclear if these benefits are the same for humans, and more research is needed (16,
Yerba mate contains saponins, which are natural compounds with anti-inflammatory properties (
In addition, it provides small amounts of vitamin C, vitamin E, selenium, and zinc. These antioxidants can strengthen your immune system and promote health (
However, researchers have not yet investigated the direct effects of yerba mate on the human immune system.
Yerba mate may help lower blood sugar and reduce the complications of diabetes.
In fact, a recent animal study reports that it may improve insulin signaling (
It may also reduce the formation of advanced glycation end-products (AGEs), which are involved in the development and worsening of many diseases (
However, research in people is currently lacking.
Yerba mate contains antioxidant compounds, such as caffeoyl derivatives and polyphenols, which may protect against heart disease.
Cell and animal studies also report that mate extract may provide some protection against heart disease (
In humans, yerba mate seems to reduce cholesterol levels.
In one 40-day study, participants who drank 11 ounces (330 ml) of yerba mate each day lowered their “bad” LDL cholesterol levels by 8.6–13.1% (
That said, more studies are needed before strong conclusions can be reached.
How to prepare Yerba Mate ?
Yerba mate is traditionally served in a container called a gourd, also known as a calabash.
It’s commonly sipped through a metal straw that has a filter on its lower end to strain out the leaf fragments.
To prepare mate, fill the bottom third of the calabash with dried or toasted mate leaves prior to adding hot water.
If you do not own a calabash, you can prepare it in a French press.
The tea is often served with burnt sugar, lemon juice, or milk and can be topped off with hot water several times before using new leaves to make a new batch.
Although traditionally consumed hot, yerba mate may also be served cold, especially in hot climates.
1This product has not been evaluated by the Food and Drug Administration.” This product is not intended to cure or treat any disease. “
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