. The Biochemistry of B vitamins. Vitamins; Vitamin B complex. 274 THE BIOCHEMISTRY OF B VITAMINS been content to neglect the exceptional individual whose performances are out of line. Even information regarding the average man has been difficult to ; "Casual information suggesting individual variability in vitamin re- quirements is readily available. Probably every doctor who deals in his practice with vitamin requirements could cite cases of unusual benefits from vitamins, or cases in which administration of a vitamin was effective in one case and wholly ineffective in anoth
. The Biochemistry of B vitamins. Vitamins; Vitamin B complex. 274 THE BIOCHEMISTRY OF B VITAMINS been content to neglect the exceptional individual whose performances are out of line. Even information regarding the average man has been difficult to ; "Casual information suggesting individual variability in vitamin re- quirements is readily available. Probably every doctor who deals in his practice with vitamin requirements could cite cases of unusual benefits from vitamins, or cases in which administration of a vitamin was effective in one case and wholly ineffective in ; Figure .6 .8 1. REQUIREMENT IN MC/OAY Distribution of the daily thiamine requirement among fifteen individuals. Actual cases of individual variations might be enumerated in great length. In some, the variability may be extreme. For instance, even when all presently recognized vitamins are added to the diets of chicks it is known that a certain small percentage of them (about 2 per cent) still develop Bloomfield 50 found great variation in the weight losses among rats on deficiency diets, and found that after recovery, the same individuals again lose the most weight on a second test on the deficiency diet. Berryman et have come across the same problem in B vitamin excretion studies, finding that different human individuals, even under the best controlled conditions, may still excrete widely varying amounts. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Williams, Roger John, 1893-. New York : Reinhold Pub. Corp.
Size: 1605px × 1558px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectvitamins
