Hunting the Vitamin

Walter H. Eddy

$Donath.' It is then at least evident that what we have called vitamin B consists two vitamins and that these factors are distributed in food sources the vitamin in differing proportion. A food in other words may be a good antineuritic and a poor antipellagric or vice versa. It is however still far from certain that what we have called vitamin B is merely dual in nature. The data already obtained however strongly emphasizes the need chemical fractionation these factors if we are to learn their role in diet and health. During the past seven years R. R. Williams has actively cooperated with my laboratory in the study vitamin B fractionation. Independently and in collaboration he has accumulated a vast amount data involving over 1000 pigeon feeding tests and many rat feeding tests. The detail this experimentation has an important bearing on both the chemistry and physiology vitamin B factors and will soon appear in print. Dr. Ralph Kerr, who developed with Williams and myself the isolation a crystalline bios (bios 223), has during the past year separated from yeast another substance chemical homogeneity and * Read before the Food and Drugs Section the American Association at the$

Hunting the Vitamin

Walter H. Eddy

Follow American Journal of Public Health , Volume 18 (3) American Public Health Association – Mar 1, 1928