翻譯太走樣了，你自己對照檢查一下

中文：
研究人員在加拿大和美國的商店隨機選購不同品牌的草本補品，包括數百萬美國人用來預防和治療感冒的紫錐菊(Echinacea)。他們檢測的兩瓶St. John's商標的麥汁顯示，這種可治療輕度憂鬱症的藥物中，裡麵不含任何藥物成份，一瓶的成份是米粉，另一瓶是瀉藥。

英文原文：
Among their findings were bottles of echinacea supplements, used by millions of Americans to prevent and treat colds, that contained ground up bitter weed, Parthenium hysterophorus, an invasive plant found in India and Australia that has been linked to rashes, nausea and flatulence.

Two bottles labeled as St. John’s wort, which studies have shown may treat mild depression, contained none of the medicinal herb. Instead, the pills in one bottle were made of nothing but rice, and another bottle contained only Alexandrian senna, an Egyptian yellow shrub that is a powerful laxative. Gingko biloba supplements, promoted as memory enhancers, were mixed with fillers and black walnut, a potentially deadly hazard for people with nut allergies.