How can food quacks and other vitamin pushers be recognized?

如何识别庸医和保健品推销者?。

Of course, there were many quacks, but that was to be expected.

当然有不少庸医，但那是可以预见的。

They did so in order to distinguish themselves from charlatans and quacks who purvey anti-aging products and treatments that are ineffective and sometimes harmful.

他们这样做是为了把自己与那些提供抗衰老产品和疗程的吹牛大王和庸医区分开来，那些产品都是无效的，甚至是有害的。

Away, then, with quacks and organizers!

那么, 让那些江湖郎中和组织者走开!

They flaunted themselves as of the elect group, but actually most of them are quacks.

它们标榜自己是出类拔萃的一样，可实际上它们大多数都是假充内行。

It is a direct application of a popular idea: If it walks like a duck and quacks like a duck, it must be a duck.

它直接应用了一个很流行的理念：走起路来象鸭子和叫起来象鸭子的，那就一定是只鸭子。

It also argues for legislation against “charlatans and quacks, ” an issue that apparently arose long before the advent of infomercials.

文中还主张立法禁止“江湖郎中和冒牌医生”，这种问题显然早在商业信息广告以前就出现了。