适应素食饮食后肠道健康,排便模式和营养摄入:一项随机对照试验
Julian Herter1, Frieda Stübing1, Volker Lüth1
1Department of Internal Medicine II, Centre for Complementary Medicine, Freiburg University Hospital, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
在健康的学生中,采用素食饮食八周并没有对肠道健康标志物产生负面影响. 这种饮食改变稍微增加了每周排便的频率,但没有对便形式或生活质量产生不良影响.
科学领域:
- 营养科学 营养科学
- 胃肠病学 胃肠病学
- 微生物组研究 微生物组研究
背景情况:
- 植物性饮食与肠道微生物群的多样性有关,但它们对肠道健康和排便的临床影响不明.
- 以前的研究表明,素食饮食与增加肠道排便频率和更软的便相关.
- 缺乏关于新开始采用素食饮食及其对肠道健康的影响的随机对照试验.
研究的目的:
- 研究短期素食饮食对健康年轻人肠道健康和排便模式的影响.
- 为了比较采用素食饮食与肉类丰富饮食的个体之间的肠道健康标志物.
- 评估与饮食模式相关的营养摄入量,包括纤维.
主要方法:
- 一项随机对照试验,涉及65名身体活跃的德国大学生.
- 参与者被分配为素食主义者或富有肉类的饮食八周.
- 用布里斯托尔便形式尺度 (BSFS),胃肠道生活质量指数 (GIQLI) 和克利夫兰诊所便失禁评分 (CCFIS) 评估了肠道健康.
- 营养摄入量通过权重的食物日记记录.
主要成果:
- 每周排便频率在素食组略有增加,而在肉类丰富的组保持不变.
- 素食者的纤维摄入量显著增加,而在肉类丰富的群体中则下降.
- 在BSFS或CCFIS中没有观察到群体之间的显著差异.
- 胃肠道生活质量和腹部不适在两个饮食组中保持了相似的状态.
结论:
- 短期采用素食饮食不会对健康年轻人肠道健康的关键标志物产生不利影响.
- 转变为素食饮食可以在短期内在没有消化系统负面影响的情况下进行管理.
- 进一步的研究可以探索长期影响和特定机制,将素食饮食与肠道健康联系起来.
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