STORAGE OF CAROTENOIDS AND OF VITAMINS A 



523 



Table 2 



The Relation of the Vitamin A Intake over a 28-Day 

 Period to the Amount Stored in the Liver 

 IN Rats Previously Depleted of Vitamin A" 



" Adapted from X. B. Guerrant, /. Nutrition, 37, 37-51 (1949), p. 44. 

 '' Consisting of 5 to 12 rats per group. 

 " Average weight of rats at end of depletion was 128 g. 



'' This group received 3 mg. of a-tocopherol daily during the 28-day test period as ad- 

 ditional supplement. 



that 47% of the vitamin A admini.stered to pigs was retained. Other work 

 has confirmed the fact that the extent of utiUzation and storage of vitamin 

 A is a function of the dosage employed. Thus, Lemlej^ et «/.^^^ reported 



«"^ J. M. Lemlev, R. A. Brown, O. D. Bird, and A. D. Emmett, /. Xiitriiion. 3S, 53-64 

 (1947). 



