Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

LEVEL OF VITAMIN A IN THE BLOOD AS AN INDEX OF VITAMIN A DEFICIENCY IN INFANTS AND IN CHILDREN

LEVEL OF VITAMIN A IN THE BLOOD AS AN INDEX OF VITAMIN A DEFICIENCY IN INFANTS AND IN CHILDREN In previous communications1 we have reported on the vitamin A requirements of infants and of children. The criteria which we used for estimating the vitamin A status of the subjects were (1) growth, (2) susceptibility to infections and (3) visual threshold in the dark (dark adaptation). The results of the studies indicated that, as judged by the aforementioned criteria, the requirement for vitamin A is low and that the average diet of infants and children contains several times the minimum requirement. It is for this reason that patients with frank vitamin A deficiency are so uncommonly observed in the clinic. The possibility exists, however, that states of subclinical vitamin A deficiency are much more prevalent. In view of the fact that the level of vitamin C in the blood is now regarded as an indicator of the size of the stores of vitamin C in the body and is http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American journal of diseases of children American Medical Association

LEVEL OF VITAMIN A IN THE BLOOD AS AN INDEX OF VITAMIN A DEFICIENCY IN INFANTS AND IN CHILDREN

Loading next page...
 
/lp/american-medical-association/level-of-vitamin-a-in-the-blood-as-an-index-of-vitamin-a-deficiency-in-K1pVcFfece
Publisher
American Medical Association
Copyright
Copyright © 1941 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0096-8994
eISSN
1538-3628
DOI
10.1001/archpedi.1941.02000180003001
Publisher site
See Article on Publisher Site

Abstract

In previous communications1 we have reported on the vitamin A requirements of infants and of children. The criteria which we used for estimating the vitamin A status of the subjects were (1) growth, (2) susceptibility to infections and (3) visual threshold in the dark (dark adaptation). The results of the studies indicated that, as judged by the aforementioned criteria, the requirement for vitamin A is low and that the average diet of infants and children contains several times the minimum requirement. It is for this reason that patients with frank vitamin A deficiency are so uncommonly observed in the clinic. The possibility exists, however, that states of subclinical vitamin A deficiency are much more prevalent. In view of the fact that the level of vitamin C in the blood is now regarded as an indicator of the size of the stores of vitamin C in the body and is

Journal

American journal of diseases of childrenAmerican Medical Association

Published: Dec 1, 1941

There are no references for this article.