期刊
MOLECULAR NUTRITION & FOOD RESEARCH
卷 61, 期 9, 页码 -出版社
WILEY
DOI: 10.1002/mnfr.201600992
关键词
Brassica; Gastrointestinal health; Gut microbiota; Randomised crossover study; Sulphate-reducing bacteria
资金
- Danish Councillor Strategic Research as part of the NAT4LIFE project
- UK Biotechnology and Biological Sciences Research Council [BB/J004545/1]
- BBSRC [BBS/E/F/00044437, BBS/E/F/00044431, BBS/E/F/00042624] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BBS/E/F/00044437, BBS/E/F/00041700, BBS/E/F/00042624, BBS/E/F/00044431] Funding Source: researchfish
Scope: We examined whether a Brassica-rich diet was associated with an increase in the relative abundance of intestinal lactobacilli and sulphate-reducing bacteria (SRB), or alteration to the composition of the gut microbiota, in healthy adults. Methods and results: A randomised crossover study was performed with ten healthy adults who were fed a high- and a low-Brassica diet for 2-wk periods, with a 2-wk washout phase separating the diets. The high-Brassica diet consisted of six 84 g portions of broccoli, six 84 g portions of cauliflower and six 300 g portions of a broccoli and sweet potato soup. The low-Brassica diet consisted of one 84 g portion of broccoli and one 84 g portion of cauliflower. Faecal microbiota composition was measured in samples collected following 2-wk Brassica-free periods (consumption of all Brassica prohibited), and after each diet, whereby the only Brassica consumed was that supplied by the study team. No significant changes to the relative abundance of lactobacilli were observed (p = 0.8019). The increased consumption of Brassica was associated with a reduction in the relative abundance of SRB (p = 0.0215), and members of the Rikenellaceae, Ruminococcaceae, Mogibacteriaceae, Clostridium and unclassified Clostridiales (p < 0.01). Conclusion: The increased consumption of Brassica vegetables was linked to a reduced relative abundance of SRB, and therefore may be potentially beneficial to gastrointestinal health.
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