Dietary calcium intake in lactose maldigesting intolerant and tolerant African-American women
Dietary calcium intake in lactose maldigesting intolerant and tolerant African-American women
复制标题
DOI：
10.1080/07315724.2002.10719193
复制
发表时间：
2002-02-01
影响因子：
3.5
通讯作者：
Johnson, AO
中科院分区：
文献类型：
--
作者：
Buchowski, MS;Semenya, J;Johnson, AO
背景：绝经前非裔美国女性的乳糖消化不良、乳糖不耐受和钙摄入量之间的关系尚不清楚。目的：确定乳糖和乳制品不耐受如何影响乳糖消化不良的绝经前非裔美国女性的钙摄入量。设计：根据呼气氢测试确定 50 名绝经前乳糖消化不良的非裔美国女性的膳食钙摄入量。 26 名女性患有乳糖不耐受，24 名女性自我报告乳糖耐受。结果：乳糖消化不良和不耐症女性的平均钙摄入量显着低于乳糖耐受女性（388 +/- 150 毫克/天 vs. 763 333 毫克/天，p < 0.0001，t 检验）。两组均未达到新制定的钙膳食参考摄入量 (DRI)（1,000 毫克/天）。耐乳糖女性膳食钙的主要来源是牛奶和乳制品（45%），以及含非乳制品钙的混合食品（30%）。在乳糖不耐受的女性中，46%的钙来自混合食物，只有12%来自牛奶和乳制品。乳糖不耐症女性的体重指数 (BMI) 高于乳糖耐量女性（p = 0.008，t 检验），并且钙摄入量与 BMI 呈负相关（R-2 = 0.470）。结论：与乳糖不耐症女性相比，在非裔美国绝经前女性中，乳糖耐量有助于从膳食中摄入钙。低钙摄入量与较高的体重指数相关。
Background: The relationship between lactose maldigestion, lactose intolerance, and calcium intake in premenopausal African American women is unknown.Objective: To determine how intolerance of lactose and dairy products affects intake of calcium in lactose maldigesting premenopausal African American women.Design: Dietary intake of calcium was assessed in 50 premenopausal lactose maldigesting African American women as determined by the breath hydrogen test. Twenty-six women were lactose intolerant and 24 were lactose tolerant by self-reports.Results: The average intake of calcium in lactose maldigesting and intolerant women was significantly lower than in lactose tolerant women (388 +/- 150 mg/day vs. 763 333 mg/day, p < 0.0001, t test). Neither group reached the newly established Dietary Reference Intake (DRI) for calcium (1,000 mg/day). Major source of dietary calcium in lactose tolerant women were milk and dairy products (45%), and mixed foods containing calcium from non-dairy sources (30%). In lactose intolerant women, 46% of calcium was from mixed foods and only 12% was from milk and dairy products. Lactose intolerant women had higher body mass index (BMI) than lactose tolerant women (p = 0.008, t test), and calcium intake was negatively associated with BMI (R-2 = 0.470).Conclusions: In African American premenopausal women, lactose tolerance facilitates the dietary intake of calcium when compared with their lactose intolerant counterparts. Low calcium intake is associated with higher BMI.