Mixed
A typical high-FODMAP diet increases the relative abundance of butyrate-producing Clostridium cluster XIVa and mucus-associated Akkermansia muciniphila compared to a low FODMAP diet.
Eating a diet higher in FODMAPs (typical Western/Australian diet) promotes the growth of beneficial bacteria like Clostridium cluster XIVa (butyrate producers) and Akkermansia muciniphila (mucus-associated) compared to a strict low FODMAP diet. This suggests that long-term strict restriction might deprive the gut of substrates needed to maintain these specific beneficial populations.
the typical Australian diet increased relative abundance for butyrate-producing Clostridium cluster XIVa (median ratio 6.62; p<0.001) and mucus-associated Akkermansia muciniphila (19.3; p<0.001)... on the low FODMAP diet reduced Ruminococcus torques.
Why this rating
Same study design as N1, robust statistical significance.
Source
Diets that differ in their FODMAP content alter the colonic luminal microenvironment
Emma P. Halmos et al. · Gut · 2014
DOI 10.1136/gutjnl-2014-307264
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