The Claim
In healthy young adults, the abundance of Bacteroides in the gut microbiome is strongly and consistently positively correlated with the gene expression of tryptophanase across dietary conditions, suggesting a functional relationship between this bacterial genus and the microbial metabolism of tryptophan.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In healthy young adults, higher levels of Bacteroides bacteria in the gut are consistently linked to higher activity of the tryptophanase gene, indicating a relationship between this bacterium and the breakdown of tryptophan by gut microbes.
See the scientific wording
In healthy young adults, the abundance of Bacteroides in the gut microbiome is strongly and consistently positively correlated with the gene expression of tryptophanase across dietary conditions, suggesting a functional relationship between this bacterial genus and the microbial metabolism of tryptophan.
When Bacteroides bacteria are abundant in the gut, they produce more of an enzyme that breaks down a tryptophan-related compound, which changes how much of that compound ends up in the stool.
What the research says
1 studyScientists found that in healthy young adults, the more Bacteroides bacteria there are in the gut, the more of the tryptophan-breaking enzyme is present — no matter if they ate more, less, or normal amounts of food. This shows the two are reliably linked.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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