yacon leaf

Scientists' hopes for yacon leaf as a treatment for diabetes are crushed due to long-term toxicity

Saturday, April 07, 2012 by: Donna Earnest Pravel
Tags: yacon leaf, diabetes, toxicity

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
BACK INTO THE CLOSET: Why U.S. reporters are not allowed to write about rainbow events in nations where being gay is still condemned
Depopulation test run? 75% of children who received vaccines in Mexican town now dead or hospitalized
A family destroyed: Six-month-old dies after clinic injects baby with 13 vaccines at once without mother's informed consent
INVESTIGATION: Three days before Dr. Bradstreet was found dead in a river, U.S. govt. agents raided his research facility to seize a breakthrough cancer treatment called GcMAF
BAM! Chipotle goes 100% non-GMO; flatly rejecting the biotech industry and its toxic food ingredients
BOMBSHELL: China and America already at war: Tianjin explosion carried out by Pentagon space weapon in retaliation for Yuan currency devaluation... Military helicopters now patrolling Beijing
ECONOMIC SLAVERY FOR ALL: While we were distracted with the Confederate flag flap, Congress quietly forfeited our entire economic future via fast-track trade authority
March Against Monsanto explodes globally... World citizens stage massive protests across 38 countries, 428 cities... mainstream media pretends it never happened
GMO crops totally banned in Russia... powerful nation blocks Monsanto's agricultural imperialism and mass poisoning of the population
SCOTUS same-sex marriage decision may have just legalized the concealed carry of loaded firearms across all 50 states, nullifying gun laws everywhere
Nearly every mass shooting in the last 20 years shares one surprising thing? and it's not guns
Vicious attack on Dr. Oz actually waged by biotech mafia; plot to destroy Oz launched after episode on glyphosate toxicity went viral
Holistic cancer treatment pioneer Dr. Nicholas Gonzalez dies suddenly; patients mourn the loss of a compassionate, innovative doctor who helped thousands heal from cancer
Pepsi drops aspartame from diet soda as consumers reject toxic sweetener
Bride of Frankenfood: Hillary Clinton pushes GMO agenda... hires Monsanto lobbyist... takes huge dollars from Monsanto
STATINS RED ALERT: Widely prescribed drugs act as cellular poisons that accelerate aging... deactivate DNA repair... promote diabetes, muscle fatigue and memory loss
Mind control through emotional domination: How we're all being manipulated by the "crisis of the NOW"
Wild eyes and bowl cuts: Why do mass shooters always share the same hair styles and crazed zombie stares?
(NaturalNews) Yacon leaf (Smallantus sonchifolius) is an herb that has become popular in recent years due to a few controlled medical studies showing the positive effects of yacon leaf on diabetic rats. The herb is used in South America to control blood sugar. Some commercial green superfood formula makers list yacon leaf as an ingredient. Yacon is considered a superfood because it it high in flavanoids, fructooligosaccharides, and antioxidants. The interest in yacon leaf motivated a team of researchers in 2011 to study the long-term effects of yacon leaf extract. They experimented with yacon leaf tea on diabetic rats for ninety days. The results were that long-term usage of yacon leaf caused kidney damage in the rats. Yacon leaf is no longer being considered as a possible therapy for diabetes.

The initial clinical study involving yacon leaf and diabetes showed great promise

The Journal of Ethnopharmacology published a clinical study in 2001 which involved administering a decoction [sic] of yacon leaf tea to rats which had been induced with diabetes. The rats were either fed a 10 percent solution of yacon tea by injection or by a feeding tube. A single dose was enough to reduce the blood glucose levels in the control rats, but had no effect on the diabetic rats. However, when the rats' water bottles were filled with yacon tea instead of water for thirty days, and the rats were given free access to the water bottles, the blood glucose levels of the diabetic rats dropped significantly. After thirty days on yacon leaf tea, the diabetic rats demonstrated a healthy weight loss. Also, their insulin levels and urinary tract markers had improved. The scientists conducting the study believed that yacon leaf tea did have a positive effect on insulin levels, and were very encouraged about its possible use in human diabetics.

A second clinical study involving diabetic rats furthered the enthusiasm for yacon leaf

A second team of scientists decided to experiment on diabetic rats with a variety of yacon leaf extracts in 2010. Published in Chemico-Biological Interactions, this clinical study tested blood glucose and insulin levels of diabetic rats with five different strengths of yacon leaf extract for eight weeks. After eight weeks on yacon leaf extract, the insulin and glycemic levels in the diabetic rats were under control. Again, the researchers were quite enthusiastic about the possibility of yacon leaf in the treatment of diabetes.

A long-term study of yacon leaf in 2011 resulted in disappointing news

In 2011, a team of Brazilian scientists decided to test the long-term effects of yacon leaf extract on diabetic rats, citing the above studies. The scientists chose yacon leaf tea (infusion), leaf-rinse extract, and a polar extract for the study. This toxicity study lasted for 90 days. At the end of the study, both the yacon leaf tea and the leaf-rinse extract had caused kidney damage, and the rats' blood glucose levels had risen. The scientists decided that the positive effects of yacon leaf were reversible, and that yacon leaf contained kidney-damaging levels of terpenoids. They could not recommend yacon leaf in the treatment of diabetes.

Sources for this article include:

Pubmed.gov, "Hypoglycemic effect of the water extract of Smallantus sonchifolius (yacon) leaves in normal and diabetic rats." M.J. Avbar, et al. Journal of Ethnopharmacology February 2001; 74(2):125-32. http://www.ncbi.nlm.nih.gov/pubmed/11167030

Pubmed.gov, "Hypoglycemic activity of leaf organic extracts from Smallantus sonchifolius: Constituents of the most active fractions." S.B. Genta, et al. Chemico- Biological Interactions April 2010; 185(2): 143-52. http://www.ncbi.nlm.nih.gov/pubmed/20211156

Pubmed.gov, "Renal toxicity caused by oral use of medicinal plants: the yacon example." R.B. de Oliveira, et al. Journal of Ethnopharmacology January 2011; 133(2): 434-41. http://www.ncbi.nlm.nih.gov/pubmed/20951787

About the author:
This article is provided courtesy of Donna Earnest Pravel, owner and senior copy editor of Heart of Texas Copywriting Solutions.com. Get free weekly tips on natural healing and herbs by visiting her blog, Bluebonnet Natural Healing Therapy.

Follow real-time breaking news headlines on
Yacon leaf at FETCH.news
Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...


Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.