Word: vitamins
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...Vitamin. Experiments with the diet of white rats disclosed that on a certain diet they will thrive but will not produce young or, if they have young, will not have sufficient milk to feed them, will become nervous, irritable, cross with the young and even eat them. Olive, peanut, soy bean and peach kernel-oil were found to restore and promote fertility but failed to produce lactation (that is, milk for the young). The seeds of wheat, corn, hemp produced fertility and lactation. From these facts are inferred the existence of a new vitamin, called Vitamin E or Vitamin...
Prof. H. Steenbock gave the details of his cure for rickets. He has succeeded in effecting this cure in rats by exposing the animals to violet rays from a quartz mercury lamp. He has, it is also believed, discovered a new vitamin in olive oil, helpful to those who have diabetes...
Wildiers discovered over 20 years ago that the micro-organisms of yeast will grow rapidly in beer wort, but not in artificial media. He called the unknown agent of growth "bios" in a book called La Cellule. In 1916 Dr. Williams suggested that the substance previously called Vitamin B was identical with Wildiers' "bios." Extracts of some substances known to be rich in B stimulate yeast growth, and many substances have been tested for yeast stimulation as a means of measuring their B content...
...Funk and Dubin showed that the yeast-stimulating power might be merely accidentally associated with Vitamin B. When an extract rich in B is shaken with Fuller's earth all its anti-neuritic power (power to cure beriberi, the chief characteristic of Vitamin B) is removed, though it continues to stimulate yeast. Funk therefore proposed that Vitamin B was really two vitamins?B, the anti-neuritic, and D, the yeast-stimulating. Dr. E. V. McCollum, of Johns Hopkins University, one of the pioneer American investigators of vitamins, has also used the term Vitamin D for a factor present...
...bios" problem, with G. H. Lucas and others, found that "bios" was divisible into two substances, "Bios I" and "Bios II,"* both stimulating yeast growth in some measure, although not necessarily indispensable to it. They disagree with Eddy and Williams as to the identity of the "bioses" with Vitamin B, having made experiments which seem to disprove any constant relation, although both are frequently present in the same food. McCollum believes the term vitamin should be reserved for nutritional factors absolutely essential to the growth of mammals rather than for those factors merely highly stimulatory to organic life...