Rengo used to be known as "Rengo Fruit" and the claim was made that its active constituents were derived from a luscious tropical fruit which grows in clusters similar to grapes...

Rengo has been analyzed and, according to Dr. Kebler's analysis, contains: Thyroid gland, Poke root, Cascara, Cassia fistula.

That the prolonged administration of thyroid gland will sometimes bring about a marked reduction in weight is true but its use even under skilled medical supervision is fraught with danger. It is little less than criminal that ignorant quacks of Kellogg's type should be permitted to distribute indiscriminately drugs that have the potency for harm that is possessed by the thyroid preparations.

A 1902 advertisement for Bisga embalming fluid finally reveals what is at stake in embalming. The advertisement portrays a perfectly preserved corpse, embalmed three months previously, fully dressed in business attire, seated, and holding a newspaper. At first glance, the advertisement seems to suggest that through embalming one can retain one's middle-class appearance, and thereby the status achieved in life in the grave. Certainly, this was a perception that circulated in mass culture...

But in appearing to reaffirm middle-class markings through embalming, the Bisga advertisement reveals a more ominous truth: because of the laws regulating the use of corpses, the apparent gentleman's body most certainly belonged to an individual who had been destitute. He simply was remade to appear middle class.