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Anti-aging Research > Kava-kava
Kava-kava (Piper methysticum)
Specific Recommendations:
News & Research:
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Unsolved mystery of kava toxicity - Science Daily, 7/14/11 -
"A major new review of scientific knowledge on kava
-- a plant used to make dietary supplements and a trendy drink with calming
effects -- has left unsolved the mystery of why Pacific Island people can
consume it safely, while people in the United States, Europe, and other
Western cultures sometimes experience toxic effects ... Their review of 85
scientific studies on kava toxicity found no consensus on kava toxicity,
despite several theories that have emerged over the years. Culprits include
methods for preparing kava, the particular species of kava used, the
possible toxicity of substances produced by the body when kava is digested
and genetic differences among consumers. "To date, there remains no
indisputable reason for the increased prevalence of kava-induced
hepatotoxicity in Western countries," the researchers say"
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AHPA publishes report questioning kava-liver toxicity links - Nutra USA,
3/9/11 - "A veteran kava researcher says liver
toxicity cases that have been reported in recent years may be down to
isolated quality control issues, rather than inherent toxicity issues with
the herb and its extracts ... To minimize hepatotoxic risks due to kava use,
efforts have to be undertaken to improve kava quality standards and to
establish strict regulations for kava cultivators, farmers, harvesters,
manufacturers, and physicians treating patients for anxiety, tension, and
restlessness"
-
Research identifies the herbal supplements that are effective in treating
anxiety - Science Daily, 10/6/10 - "A systematic
review of research into the use of nutritional supplements for the treatment
of anxiety disorders has found strong evidence for the use of extracts of
passionflower or kava and combinations of L-lysine and L-arginine ... We
found mixed results -- while passionflower or kava and L-lysine and
L-arginine appeared to be effective, St John's Wort and magnesium
supplements were not"
-
Kava for Anxiety: Is Short-Term Use Safe? - WebMD, 5/14/09 -
"the WHO report suggested that liver toxicity may be
limited to kava formulations that used the whole kava plant, instead of just
the root, or used acetone and ethanol to extract the active ingredient from
the plant instead of water ... As measured by standardized anxiety and
depression questionnaires, the participants reported much less anxiety when
they were taking the kava than when they took placebo pills ... Depression
levels also dropped among many patients who reported depression and no
serious side effects were associated with kava use"
-
Kava Linked To Liver Damage, New Evidence Shows - Science Daily, 2/22/08
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There was quite a concern about kava and liver toxicity a year or two ago.
Has that been clarified? - Natural Foods Merchandiser, 7/04
-
New Kava Study Generates Mixed Reaction - Natural Foods Merchandiser,
6/03
- Hepatic Toxicity Possibly Associated With Kava-Containing Products
- Intelihealth, 11/30/02
-
Kava's Source of Liver Damage Pinpointed - Clinical Psychiatry News,
8/02 -
"Swiss researchers have linked the toxicity with an acetone-extraction
manufacturing process widely used in the German and Swiss products. Dr.
Stoll expects that there will be a rapid response by the supplement industry
to come out with safer formulations. Kava can also be extracted with ethanol
or water"
- Herbs for
Kids? - Dr. Weil, 7/25/02
-
Industry Associations Support FDA's Kava Advisory - Natural Foods
Merchandiser, 5/02
-
Kava Not Linked To Liver Damage - Functional Foods & Nutraceuticals,
4/02
-
Toxicologist Concludes Kava Does Not Damage Liver - Natural Foods
Merchandiser, 4/02
- Kava May Cause Liver Damage - WebMD, 3/26/02
- FDA: Herb Kava May Hurt Liver - Intelihealth,
3/26/02
-
Herbal Anxiolytic Pulled From European Markets - Clinical Psychiatry
News, 3/02
-
Prescription-only Status For Kava Looks Likely In Germany - Functional
Foods & Nutraceuticals, 3/02
-
Germany Questions Kava's Safety; US Industry Responds - Functional Foods
& Nutraceuticals, 2/02
- FDA Probes Anti-Anxiety Herb - Intelihealth,
2/12/02
-
European Studies Link Kava To Liver Damage - Natural Foods Merchandiser,
2/02
- Should You Quit Taking Kava? - WebMD, 1/29/02 -
"In
18 of the European cases, people were also taking -- along with the kava --
prescription or over-the-counter drugs that were known to possibly cause
liver toxicity. Whether the liver toxicity was related to those drugs, or
kava alone, or a combination, may or may not be able to be determined."
- An Herbal Remedy Is Tied To Diseases Of The Liver
- Intelihealth, 1/16/02
- Herb kava linked to liver problems - USA Today,
12/31/01
- Kava Quells Anxiety - Nutrition Science News,
12/01
- Stress: The Hidden Factor For Weight Gain -
Nutrition Science News, 4/01
-
Is kava really as effective as advertised for anxiety? - Nutrition
Science News, 4/01
-
Kava Quells Anxiety - Nutrition Science News, 7/00
- Natural Alternatives to Viagra with Ellen Kamhi -
WebMD, 5/26/00 - "kava kava is most
often used as an antianxiety treatment, and mainstream medical studies have
verified its efficacy for use as an antianxiety herb. This is with very low
level of side effects ... So it's also used for socialization. It puts
people in a good mood"
- Herbs Make It Easy to Catch Some Zs" - Nutrition
Science News, 11/99
- And the Good Herb Taketh Away - Nutrition Science
News, 10/99
-
The Root of Tranquillity - Time, 11/9/98
- Efficacy
and Tolerability of Kava in Anxiety - Herb Research Foundation
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