Many investigators in the science of nutrition have demonstrated that in certain animals the rate of growth and the size can be influenced through the choice of foods, irrespective of heredity and environment. With the rapid progress in the study of foods along this line, various experiments on the growth of children have been undertaken, and much has been said concerning the "normal" rates of growth.
Several standards are now employed for these "normal" calculations, but a student of a critical mind must necessarily question the accuracy of the "normal," since many factors must be involved in drawing a conclusion. Generally and for the most part, the "normal" has been applied merely to the rate of growth in body weight compatible with a given height and age. For a number of years it has appeared to one of us (D. E. L.) that overemphasis has been placed on this phase
LANE DE, BOSSHARDT FH. NUTRITION OF CHILDREN ON A MIXED AND ON A VEGETABLE DIET. Am J Dis Child. 1930;40(2):285–297. doi:10.1001/archpedi.1930.01940020061005
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