What's in a Name, Snake Oil

Snake oil is now a generic term meaning a substance with no medicinal value sold as a remedy for physical ailments. The term most likely comes from the use of oil derived from Chinese water snakes as a topical lotion. Chinese immigrants working on the construction of the Transcontinental Railroad in the 1860s would use it to alleviate joint pain. This ancient Chinese remedy was laughed at by other medicine salesmen, who called it a scam. In time, the term “snake oil” developed a negative connotation.

In the mid-1980s, a California psychiatrist named Richard Kunin decided to explore the question if snake oil was quackery or was it a legitimate treatment for joint pain, like the Chinese laborers claimed it was. He shared his findings in a 1989 letter to the Western Journal of Medicine.

Snake oil, especially the oil from the fatty tissue found in Chinese water snakes was unusually high in omega-3 fats. Kunin concluded, this meant that it could actually do what its advocates claimed, "snake oil is a credible anti-inflammatory agent and might confer therapeutic benefits. Since essential fatty acids are known to absorb transdermally, it is not far-fetched to think that inflamed skin and joints could benefit by the actual anti-inflammatory action of locally applied oil just as the Chinese physicians and our medical quacks have claimed.”

Kunin believed that snake oil actually worked. Subsequent research suggests that he was right. Unfortunately, while Kunin’s conclusions are mostly correct, there is one significant omission. The Chinese snake oil came from water snakes, which, perhaps coincidentally fed on fish which themselves contained high amounts of omega-3 fatty acids. American-sold snake oil came from rattlesnakes, which do not have anywhere nearly the omega-3 amounts needed to provide the promised therapeutic benefits.