Supplement Reviews  |  Fat Burners & Weight Loss  |  Bodybuilding Guides  |  Training & Workout  |  Health & Nutrition  |  Diet & Fitness Articles  |  User Reviews
Fat Burners & Diet Pills

Biotest Hot Rox Extreme Review
Bitter Orange - Citrus Aurantium
Cellucor D4 Thermal Shock
Chitosan - What is Chitosan?
Chromium Picolinate Weightloss
Coleum Forskohlii Extract
Fat Burners Review guide -1
Fat Burners Review guide - 2
GHR15 Anti Aging Review
GHR15 Supplement Review (2)
GHR Side Effects
Green Tea Diet Patch
Hoodia Gordonii Diet Pill Review
Hoodia Gordonii Diet Pill Guide - 1
Hoodia 750 & Hoodia Dex L10 - 2
Desert Burn Hoodia Review - 3
Guarana Side Effects & Benefits
Hoodoba Pure Review - 4
Hydroxadrine Review
Instone LeanFire Review
Isatori Flash Point Fat Burner - 1
Isatori Flash Point Fat Burner - 2
Lean System 7 Review
Lipoderm Ultra Review
Lose Fat & Love Handles
NutraSport Cutting Gel Review
Nutrex Lipo 6 Review (Lipo 6x)
Nutrex Lipo 6 for Her Review
Fat Burners Potential Downfall
Ephedrine Risks and Danger
Oolong Tea and Weight Loss
Prolab Metabolic Thyrolean
Pyruvate Supplement Review
Relacore Review - 1
Relacore Side Effects - 2
Slimquick Review - 1
Slim Quick Review - 2
Slimquick Extreme Review - 3
Slimquick Cleanse Review - 4
Twinlab Ripped Fuel Review
Twinlab Ripped Fuel Side Effects
Stacker 2 Fat Burner Review
Stacker 2 Ephedra Free Review
Stacker 3 Fat Burner Review
Tea Lite Weight Loss Patch
Tonalin CLA Review
Tonalin CLA Side Effects & Benefits
Tonalin CLA Studies
Trimspa Review
VPX Meltdown Review
VPX Redline Review
Wu Yi Tea Review
Yerba Mate Benefit, Side Effects -1
Yerba Mate Tea Drinking - 2
Zantrex 3 Review
Zantrex 3 Side Effects
Zotrin For Women and Men

Xenadrine EFX & RFA-1

New Xenadrine RFA-1 Review
Xenadrine EFX Review
Xenadrine NRG 8 Hour Revew
Xenadrine information
Xenadrine RFA 1 (Original)
Xenadrine side effects
Thermogenics fat loss

MuscleTech Hydroxycut

Hydroxycut Review
Hydroxycut Hardcore Review
Hydroxycut Max for Women
Hydroxycut Side Effects
Hydroxycut With Hoodia
Hydroxycut Acai Reviews
Hydroxycut FAQ

Weight Loss & Fat Loss

Accelis Review
Adipex Diet Pill Information
Adipex Side Effects
Alli Weight Loss Pill Review
Clenbuterol Weight Loss
Clenbuterol Side Effects
Cortislim Review
Dexatrim Max Complex 7 Review
Fenphedra Review
Hollywood Miracle Diet Review
Lipozene Review
Leptopril Diet Pill Review
Leptovox Review
Lipovox Review
Meridia Weight Loss Pill
Meridia Side Effects
Miracleburn Review
Nuphedrine Review
Orovo Detox Weight Loss Pill
Phentermine Diet Pill Information
Phentermine Diet Pill Studies
Phentermine Side Effects
Phentermine Types
Quick Fat Loss Tips
Sensa Weight Loss Reviews
Sesamin Review - Sesamin Oil
Slimshots Review
Weight Loss Program 1
Weight Loss Program 2
Xenical Weight Loss Pill
Xenical Side Effects

Diets & Diet Plans

Abs Diet Plan
Atkins Diet
Biggest Loser Diet Plan
Bill Phillips Body For Life
Blood Type Diet (A B O AB)
Bob Greene's Diet
Burn the Fat Feed the Muscle
Calorie Shifting Diet Plan Review
Curves Diet
Dash Diet
Dr. Phil Diet Plan
Fat Flush Diet Plan
Fat Smash Diet
GI Diet
Holy Grail Body Transformation
L.A. Weight Loss
Mediterranean Diet
Nutrisystem Diet
Slim Fast Diet
Sonoma Diet
South Beach Diet
The Truth About Abs Review
Zone Diet

Yerba Mate Weight Loss & Side Effects

Yerba Mate Extract Studies (2)

Continued from Part 1: What is Yerba Mate. Aside from these various health benefits, another benefit that has helped Yerba Mate gain popularity and recognition is its use in the treatment of obesity, and its effect on weight loss. There are numerous studies that have found Yerba Mate to have beneficial effects for weight loss, and because of this, Yerba mate is a common ingredient that you often find in diet pills and fat burners. There are numerous studies showing the weight loss benefits of Yerba Mate in lab mice, and some studies conducted using human subjects. Below is a Yerba Mate weight loss study done on lab mice.

In a systematic review done on a number of herbal weight loss supplements, numerous double-blind, randomized controlled trials were reviewed to assess all clinical evidence of adverse events of herbal food supplements for body weight reduction. The herbal products assessed include Ephedra sinica, Garcinia cambogia, Paullinia cupana, guar gum, Plantago psyllium, Ilex paraguariensis (Yerba Mate) and Pausinystalia yohimbe. The results of this systematic review showed that there are adverse side effects and events reported for a number of these herbal weight loss supplements, and suggested that the reported risks are sufficient to shift the risk-benefit balance against the use of most of the reviewed herbal weight-loss supplements. However, they made note that exceptions to this are Garcinia cambogia and yerba mate, which merit further investigation. [8] What we can gather from this review is that despite the adverse side side effects associated with many of their reviewed herbal weight loss supplements, Yerba Mate was one of the exceptions; however, more studies are needed.


Drinking Yerba Mate Tea & Weight Loss Studies

In another similar type of study (this was not a systematic review, but a clinical trial), the effects of 12 commercially available plant preparations were investigated on non-obese men and women. The results of their study found no significant increase in energy expenditure with the preparations, and no change in respiratory quotient was shown, except after treatment with Yerba maté (Ilex paraguariensis), where a drop was observed, which indicates a rise in the proportion of fat oxidized. [9]

There are also several studies done on herbal extract mixture preparations (which contained Yerba Mate extracts) on weight loss where several different types of herbal supplements are mixed in a formula to induce weight loss. In a randomised double blind, placebo controlled clinical trial done at the Poznan University of Medical Science in Poland, a botanical extract weight loss formula was evaluated. Two types of tablets were used: 1) extracts of Asparagus, Green tea, Black tea, Guarana, Yerba Mate and Kidney beans; and 2) extracts of Kidney bean pods, Garcinia cambogia, and Chromium yeast. 105 health and overweight subjects took part in this clinical trial. The two types of tablets were consumed twice daily with 2 main meals. Their results showed a significant change of the Body Composition Improvement Index, with increased body fat loss. [10]

Dangers of Yerba Mate Side Effects

Yerba Mate is a stimulant and has various positive and negative physiological effects. Yerba Mate tea can help increase the focus and alertness of the user, and it may also make the user feel various negative side effects such as anxiety and jitteriness. Also, numerous studies have found that consistent drinking of Yerba Mate tea is associated with various forms of cancer. Drinking Yerba mate tea has been associated with cancers of the esophagus, oropharynx, larynx, lung, kidney, and bladder. One study conducted at the National Cancer Institute in the US to determine whether drinking yerba mate could lead to exposure to known carcinogens (a substance that causes cancer). The dry leaves of 8 different commercial brands of Yerba Mate tea was made with hot or cold water. Their results found that very high concentrations of carcinogenic polycyclic aromatic hydrocarbons were found in yerba mate leaves and in hot and cold infusions. [12]

Studies performed in Uruguay have found a high risk of bladder cancer associated with drinking Yerba Mate tea. Drinking Yerba mate tea was positively associated with bladder cancer, and the risk increases with increasing duration and amount of yerba maté drinking. [13] Yerba Maté consumption has also been associated with an increased rate of oral, oropharyngeal, esophageal, and laryngeal cancers. Clinical evidence suggests that drinking Yerba Mate tea is carcinogenic, and plays a role in the development of cancers; however the exact mechanism of carcinogenesis of Yerba Maté is still unknown. [14]

Guayaki yerba Mate




7. Obesity (Silver Spring). 2009 May 14.
Antiobesity Effects of yerba maté Extract (Ilex paraguariensis) in High-fat Diet-induced Obese Mice.
Arçari DP, Bartchewsky W, Dos Santos TW, Oliveira KA, Funck A, Pedrazzoli J, de Souza MF, Saad MJ, Bastos DH, Gambero A, Carvalho PD, Ribeiro ML.

8. Obes Rev. 2005 May;6(2):93-111.
Comment in: Obes Rev. 2005 May;6(2):89-92.
Adverse events of herbal food supplements for body weight reduction: systematic review.
Pittler MH, Schmidt K, Ernst E.

9. Phytomedicine. 1999 Oct;6(4):231-8.
Thermogenic effects of commercially available plant preparations aimed at treating human obesity.
Martinet A, Hostettmann K, Schutz Y.

10. Eur J Med Res. 2006 Aug 30;11(8):343-50.
Efficacy of 12 weeks supplementation of a botanical extract-based weight loss formula on body weight, body composition and blood chemistry in healthy, overweight subjects--a randomised double-blind placebo-controlled clinical trial.
Opala T, Rzymski P, Pischel I, Wilczak M, Wozniak J.

11. J Hum Nutr Diet. 2001 Jun;14(3):243-50
Weight loss and delayed gastric emptying following a South American herbal preparation in overweight patients.
Andersen T, Fogh J.

12. Cancer Epidemiol Biomarkers Prev. 2008 May;17(5):1262-8.
High levels of carcinogenic polycyclic aromatic hydrocarbons in mate drinks.
Kamangar F, Schantz MM, Abnet CC, Fagundes RB, Dawsey SM.

13. BMC Cancer. 2007 Mar 29;7:57.
Non-alcoholic beverages and risk of bladder cancer in Uruguay.
De Stefani E, Boffetta P, Deneo-Pellegrini H, Correa P, Ronco AL, Brennan P, Ferro G, Acosta G, Mendilaharsu M.

14. Head Neck. 2003 Jul;25(7):595-601.
The beverage maté: a risk factor for cancer of the head and neck.
Goldenberg D, Golz A, Joachims HZ.


May 2009