ASCORBIC-ACID REQUIREMENTS FOR SMOKERS - ANALYSIS OF A POPULATION SURVEY

被引:100
作者
SCHECTMAN, G [1 ]
BYRD, JC [1 ]
HOFFMANN, R [1 ]
机构
[1] MED COLL WISCONSIN,DIV BIOSTAT CLIN EPIDEMIOL,MILWAUKEE,WI 53226
关键词
2ND NATIONAL HEALTH AND NUTRITION EXAMINATION SURVEY (NHANES-II); VITAMIN-C; ASCORBIC ACID; HYPOVITAMINOSIS-C; SMOKING;
D O I
10.1093/ajcn/53.6.1466
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
The recommended dietary allowance (RDA) of ascorbic acid for smokers was recently increased from 60 to 100 mg. To determine whether this new RDA for smokers is sufficient to reduce the risk of low serum ascorbic acid (AA) concentrations (LoC) to the same concentration as nonsmokers, we analyzed the dietary intakes and serum concentrations of AA in 11 582 adult respondents in the National Health and Nutrition Examination Survey (1976-1980). Serum AA concentrations and the risk of LoC (serum ascorbic acid levels < 23 mu-mol/L) for smokers consuming different amounts of AA were compared with those for nonsmokers whose AA intake exceeded the RDA (60 mg). Serum AA concentrations were reduced, and risk of LoC increased, in smokers maintaining AA intakes > 60, 100, and 150 mg. Only smokers consuming > 200 mg AA/d had serum ascorbate concentrations and risk of LoC equivalent to nonsmokers meeting the RDA.
引用
收藏
页码:1466 / 1470
页数:5
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