Short-term pectin-enriched smoothie consumption has beneficial effects on the gut microbiota of low-fiber consumers

Susan Pihelgas, Kristel Ehala-Aleksejev, R. Kuldjärv, Ann Jõeleht, Jekaterina Kazantseva, K. Adamberg
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Abstract

Adequate consumption of fiber has a positive effect on health. The crossover study examined the effect of a pectin-enriched smoothie on gut microbiota and health parameters. During 3 weeks, 31 adults consumed two smoothies (11.6 or 4.8 g of fiber/day) alternating with washout periods in different order. At the end of each period, weekly food diaries, blood samples and stool microbiota were collected. Changes in microbiota during smoothie consumption were associated with baseline fiber intake. A greater proportion of up- (Lachnospira, Colidextribacter, Bacteroides) or down-shifts (Streptococcus, Holdemanella) was observed in low-fiber (n = 22) compared to high-fiber consumers (n = 9). In both groups, the pectin-enriched smoothie reduced the number of the Ruminococcus torques group bacteria. Our results showed that the short-term approach is effective to estimate relationships between food components and gut bacteria.
短期食用富含果胶的冰沙对低纤维消费者的肠道微生物群有益
摄入充足的纤维对健康有积极影响。这项交叉研究考察了富含果胶的冰沙对肠道微生物群和健康参数的影响。在为期 3 周的时间里,31 名成年人按照不同的顺序食用了两种冰沙(纤维含量分别为 11.6 克或 4.8 克/天),并交替饮用了一段时间。在每个阶段结束时,收集每周食物日记、血液样本和粪便微生物群。食用冰沙期间微生物群的变化与基线纤维摄入量有关。与高纤维消费者(9 人)相比,在低纤维消费者(22 人)中观察到更大比例的上移(Lachnospira、Colidextribacter、Bacteroides)或下移(Streptococcus、Holdemanella)。在这两组中,富含果胶的冰沙都减少了瘤胃球菌群细菌的数量。我们的研究结果表明,短期方法能有效估计食物成分与肠道细菌之间的关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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