The gut, not the liver, is the main control center that tells the liver when to stop making bile acids — when bile acids enter gut cells, they trigger a signal (FGF15) that shuts down bile acid production in the liver.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The claim is supported by cited studies (e.g., Kim et al. 2007) and the study’s own data showing FGF15 induction upon bile acid accumulation in enterocytes. The conclusion is consistent with established literature in mice.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.
Evidence from Studies
Supporting (1)
Deletion of the ileal basolateral bile acid transporter identifies the cellular sentinels that regulate the bile acid pool
This study shows that when the intestine can't move bile acids back to the liver properly, the liver starts making too many bile acids—proving the intestine, not the liver, is the main control center for stopping bile acid production.