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Rio Amazon Yerba Mate Tea Bags

Rio Health Yerba Maté 

Product Type: Nutritional Supplement


Recommended Use: Follow instructions on labels.


  • Not to be used during pregnancy or while breast-feeding.
  • Yerba maté should not be consumed excessively and chronically (as it has been documented to increase the risk of certain oral and oesophageal cancers).
  • Yerba maté has been reported to have (in vitro) MAO-inhibitor activity. Those persons taking MAO-inhibitor drugs, or with conditions for which MAO-inhibitor drugs are contraindicated, should check with a qualified health practitioner before taking yerba maté.
South Americans call it the "drink of the gods".  

May be helpful in alleviating symptoms as follows:

  • High level nutrition ("liquid vegetable" - antioxidants, vitamins, minerals, amino acids)

  • Balancing the nervous system

  • Fatigue and Stress

  • Sexual tonic

  • Headaches

  • Circulatory tonic

  • Detoxification

  • Curb appetite, balance blood sugar and help with weight-loss

  • Healthy alternative to tea and coffee

Yerba maté is native to the rain forests of Paraguay, Argentina, and Brazil. The people of South America have used yerba maté as a household cure for hundreds of years. Thought to ensure health, vitality, and longevity, the sacred beverage has been used to treat illness and disease, fight fatigue, and detoxify the body. The tea is considered Paraguay's national drink, and gauchos, or South American cowboys, consume maté as their "liquid vegetable" in a diet that otherwise consists mainly of meat. . . more info under "MORE INFORMATION" tab


Yerba maté contains antioxidants, more than fifteen amino acids, and twenty-four vitamins and minerals. Research shows that maté contains 196 active compounds, compared with the 144 found in green tea. Maté is high in pantothenic acid, a B vitamin that plays a vital role in metabolism and energy production, and contains protein, carotene, vitamins A, C, E, B complex, calcium, iron, potassium, manganese, magnesium, choline, as well as other nutrients.

A 1995 study from the Pasteur Institute found maté to be a more potent antioxidant than vitamin C, and a test-tube study published by the University of Montreal's Department of Anatomy in 1995 shows that it can inhibit the oxidation of low-density lipoprotein, the carrier of bad cholesterol.

The stimulant in maté is mateine, one of a group of xanthines that includes caffeine and theobromine, a stimulant found in tea and chocolate products. Although mateine has a chemical structure similar to caffeine, it stimulates the body differently. Unlike caffeine, mateine doesn't cause nervousness or jitters; instead, it is said to balance the body, calming an excited nervous system and rejuvenating a fatigued one.

Clinical studies have shown that caffeine-sensitive individuals can drink maté with no adverse reactions, according to the book Herbal Tonic Therapies (Keats, 1993) by Daniel Mowrey, Ph.D., president of the American Phytotherapy Research Laboratory in Salt Lake City.

But Mowrey, who has studied maté for fifteen years and drinks the tea daily, says the plant's nutritional value is more important than its mateine/stimulant qualities.

"This plant is a powerhouse of nutrition, especially pantothenic acid," Mowrey says.

Acting as a tonic, maté may provide the body with energy through nutrition, rather than through stimulant properties, he says. Tonic herbs are defined as those that balance a stressed body, are free of side effects, and are non-addictive.

A Swiss study on humans indicated yerba maté could be beneficial as a weight-loss aid. They noticed a thermogenic effect, indicating a rise in the proportion of fat oxidized.

In another study, yerba maté was given in combination with the plants guarana and damiana. This combination prolonged gastric emptying (which made the subjects feel "fuller" longer) and reduced body weight.

Clinical studies indicate maté leaf inhibits an enzyme involved in inflammatiion and inflammatory diseases.

A U.S. patent issued in 2002 stated that yerba maté inhibits monoamine oxidase (MAO) activity by 40-50% in vitro (see contra-indications above), reporting that it might be useful for a variety of such disorders as "depression, disorders of attention and focus, mood and emotional disorders, Parkinson's disease, hypertension, substance abuse, eating disorders, withdrawal syndromes and the cessation of smoking."


  • Blumenthal, M., et al. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. 1st ed. Integrative Medicine Communications. Newton, MA, 1998.
  • Alikaridis, F. "Natural constituents of Ilex species.” J. Ethnopharmacol. 1987; 20(2): 121–44.
  • Sanz, M. D., T. "Mineral elements in maté herb (Ilex paraguariensis St. H.).” Arch. Latinoam. Nutr. 1991; 41(3): 441–54.
  • Samuelsson, Gunnar. Drugs of Natural Origin: A Textbook of Pharmacognosy, 3rd ed. Swedish Pharmaceutical Press. Stockholm, Sweden, 1992.
  • Duke, J. A. Handbook of Phytochemical Constituents of GRAS Herbs and Other Economic Plants. CRC Press. Boca Raton, FL, 1992.
  • Vasquez, A., et al. "Studies on maté drinking.” J. Ethnopharmacol. 1986; 18: 267–72.
  • Collomp, K., et al. "Effects of salbutamol and caffeine ingestion on exercise metabolism and performance.” Int. J. Sports Med. 2002; 23(8): 549–54.
  • Lieberman, H. R., et al. "Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training." Psychopharmacology (Berl). 2002; 164(3): 250–61.
  • National Toxicology Program. "NTP toxicology and carcinogenesis studies of theophylline (CAS No. 58-55-9) in F344/N rats and B6C3F1 mice (feed and gavage studies).” Natl. Toxicol. Program Tech. Rep. Ser. 1998; 478: 1–326.
  • Martinet, A., et al. "Thermogenic effects of commercially available plant preparations aimed at treating human obesity.” Phytomedicine 1999; 6(4): 231–38.
  • Anderson, T., et al. "Weight loss and delayed gastric emptying following a South American herbal preparation in overweight patients.” J. Hum. Nutr. Diet. 2001; 14(3): 243–50.
  • Matsunaga, K., et al. "Excitatory and inhibitory effects of Paraguayan medicinal plants Equisetum giganteum, Acanthospermum australe, Allopylus edulis and Cordia salicifolia on contraction of rabbit aorta and guinea-pig left atrium.” Natural Med. 1997; 51(5): 478–481.
  • Gorzalczany, S., et al. "Choleretic effect and intestinal propulsion of ‘maté’ (Ilex paraguariensis) and its substitutes of adulterants.” J. Ethnopharmacol. 2001; 75(2–3): 291–94.
  • Williams, J. R., et al. "Treating depression with alcohol extracts of tobacco.” U.S. patent no. 6,350,479; 2002.
  • Filip, R., et al. "Antioxidant activity of Ilex paraguariensis and related species.” Nutr. Res. 2000; 20(10): 1437–46.
  • Schinella, G. R., et al. "Antioxidant effects of an aqueous extract of Ilex paraguariensis.” Biochem. Biophys. Res. Commun. 2000; 269(2): 357–60.
  • Actis-Goretta, L., et al. "Comparative study on the antioxidant capacity of wines and other plant-derived beverages.” Ann. N. Y. Acad. Sci. 2002; 957: 279–83.
  • Gugliucci, A. "Antioxidant effects of Ilex paraguariensis: induction of decreased oxidability of human LDL in vivo.” Biochem. Biophys. Res. Commun. 1996; 224(2): 338–44.
  • Gugliucci, A. "Low-density lipoprotein oxidation is inhibited by extracts of Ilex paraguariensis.” Biochem. Mol. Biol. Int. 1995; 35(1): 47–56.
  • Kalousova, M., et al. "Advanced glycation end-products and advanced oxidation protein products in patients with diabetes mellitus.” Physiol. Res. 2002; 51(6): 597–604.


A treasure trove of nature’s finest botanicals used by indigenous peoples of South America to support their health and wellbeing. Read more about Rio Health here.

Rio Amazon Yerba Mate Tea Bags

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