Yerba Mate Negative Side Effects
Yerba Mate is a South American tea craze that's taking the United States by storm, both for the tea's taste--and for its health and weight loss benefits. However, many people are wondering what potential negative side effects come with Yerba Mate. Luckily, current research indicates that side effects are few and mostly directly related to the tea's caffeine content.
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Insomnia
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When consumed in large quantities or consumed near bedtime, the caffeine in Yerba Mate can keep you awake.
Stomach Upset
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Large amounts of caffeine, especially when consumed on an empty stomach, can give some drinkers a sour stomach.
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Tension
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Caffeine can contribute to muscle tension when consumed in excess, especially for those who are prone to it. (Alejandro Lopez-Ortiz, "Frequently Asked Questions About Coffee an Caffeine," Indiana Wesleyan University Homepage.)
Appetite Suppressant
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Like all food and beverages containing a stimulant, Yerba Mate can act as an appetite suppressant.
Addiction
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According to Lopez Ortiz, your system can become mildly dependent on the caffeine in Yerba Mate. Withdrawal symptoms are mild and usually consist of headaches, tiredness and cravings.
Caffiene Intoxication
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Consuming upwards of 250 milligrams of caffeine can induce a state called caffeine intoxication, the effects of which include rambling, confused thought and speech, insomnia, muscle twitching, and gastrointestinal issues (American Psychiatric Association, 1987). A serving of Yerba Mate can contain as much as 60 milligrams of caffeine.
Carcinogen Risk
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According to the Mayo Clinic, some studies have been that indicate a possible link between heavy Yerba Mate consumption and cancers of the head and neck.
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