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Ginseng

This article was originally published in The Tan Sheet

Executive Summary

Letter in the July 9 issue of The Lancet from Karolinska Institute researchers recommends that "quality control is urgently needed for commercial ginseng preparations." The Swedish researchers based their conclusions on an analysis of 50 ginseng products. The letter writers measured for amounts of ginsenosides, thought to be the active biological component of ginseng products, and found in 44 products a variation of concentration ranging from 1.9% to 9% (weight/weight). Six products sold in Sweden, the U.K. and the U.S. "did not contain any specific ginsenosides," the study authors note

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