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Herbal medicine: the science of the art

Walker, A.F. (2006) Herbal medicine: the science of the art. Proceedings of the Nutrition Society, 65 (2). pp. 145-152. ISSN 0029-6651

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To link to this article DOI: 10.1079/PNS2006487

Abstract/Summary

In the last 50 years science has provided new perspectives on the ancient art of herbal medicine. The present article discusses ways in which the evidence base for the professional use of 'Western' herbal medicine, as therapy to treat disease, known as phytotherapy, can be strengthened and developed. The evidence base for phytotherapy is small and lags behind that for the nutritional sciences, mainly because phytochemicals are ingested as complex mixtures that are incompletely characterised and have only relatively recently been subject to scientific scrutiny. While some methodologies developed for the nutritional sciences can inform phytotherapy research, opportunities for observational studies are more limited, although greater use could be made of patient case notes. Randomised clinical trials of single-herb interventions are relatively easy to undertake and increasing numbers of such studies are being published. Indeed, enough data are available on three herbs (ginkgo (Ginkgo biloba), St John's wort (Hypericum perforatum) and saw palmetto (Serenoa repens)) for meta-analyses to have been undertaken. However, phytotherapy is holistic therapy, using lifestyle advice, nutrition and individually-prescribed mixtures of herbs aimed at reinstating homeostasis. While clinical experience shows that this approach is applicable to a wide range of conditions, including chronic disease, evidence of its efficacy is scarce. Strategies for investigating the full holistic approach of phytotherapy and its main elements are discussed and illustrated through the author's studies at the University of Reading.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:12875
Uncontrolled Keywords:phytotherapy, herbal medicine, complementary medicine, integrated medicine , CONTROLLED-TRIALS, METAANALYSIS, HAWTHORN, OUTCOMES, EXTRACT, KNEE, HIP
Additional Information:Summer Meeting of the Nutrition-Society University of East Anglia, Norwich, England, 28 Jun-1 Jul 2005

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