The Effect of Vitamin D on Calcium Retentions

Recommended Dietary Allowances

“…The recommended allowance must be [ 12 ] high enough to meet the high as well as the low requirements. Thiamine is one of the several nutrients of which the body stores are never large and are exhausted early by febrile and other diseases, by surgical operation, and by other stresses.…”

Recommended Dietary Allowances

“…would represent a sufficient margin for individual variability and that this might also be regarded as approximating closely the indications of the data compiled in 1937 by Leitch (9). Many new data (10) The extended investigations of Leverton and Marsh (11), and of McKay, Patton, et al (12) covering altogether about 150 studies made on what may be designated as a somewhat more observational plan than that of the 73 cases above mentioned, likewise led to the recommendation of 1.0 gm., as did also the more recent work of Roberts, Kerr, and Ohlson (13). The evidence supports the conclusion that, while people can adjust themselves to less, they are then not so well off in the long run.…”

Recommended dietary allowances

“…Statistically this covers the needs of all but about one in one hundred of the normal adult population. The extended investigations of Leverton and Marsh (11), and of McKay, Patton, et al (12) covering altogether about 150 studies made on what may be designated as a somewhat more observational plan than that of the 73 cases above mentioned, likewise led to the recommendation of 1.0 gm., as did also the more recent work of Roberts, Kerr, and Ohlson (13). The evidence supports the conclusion that, while people can adjust themselves to less, they are then not so well off in the long run.…”