Another clinical study was done on the effectiveness of Kava extract for treating anxiety. This study analysis was aimed at assessing the evidence for or against the effectiveness of Kava extract as a symptomatic treatment for anxiety. Double-blind, randomized, placebo-controlled trials of oral Kava extract for the treatment of anxiety were analyzed. Superiority of Kava extract over placebo was suggested by all seven reviewed trials. The meta-analysis of three trials suggests a significant difference in the reduction of the total score on the Hamilton Rating Scale for anxiety in favor of Kava extract. So, according to the study, Kava extract is an herbal treatment option for anxiety that is worthy of consideration (Pittler & Ernst, 2000).

Kava -- is truly one of the strongest anti-anxiety herbs in the world. Kava also has one of the best safety profiles of any anti-anxiety / anti-depression herb (Borne, 2003).

Other Natural Herbs

SAM-e -- has been identified as another effective natural...

Clinical studies show SAM-e to be up to 40% more effective in treating depression than placebo (Borne, 2003).
Valerian -- is regarded as one of the most powerful herbs for depression and anxiety. Commonly known for its sedative effects on the central nervous system it has been known to positively influence the body's production of GABA - a neurotransmitter that affects the pharmacology of anxiety (Borne, 2003).

Bibliography

Borne, J.V. (2003, Sept 15). Treating depression. Real solutions. Retrieved May 18, 2009, from Insight Journal: http://www.anxiety-and-depression-solutions.com/wellness_concerns/community_depression/treating_depression.php

Pittler, M., & Ernst, E. (2000). Efficacy of kava extract for treating anxiety. Journal of Clinical Psychopharmacology, 84-89.

Woelk, H. (2000). Comparison of st. john's wort and imipramine for treating depression: randomized controlled trial. BMJ, 321:536-539.