Assertion: small intestine's bacteria | /r/CapableOf | play role
Facets:
value: in happiness
type: OTHER
value: in synthesizing vitamin b
type: OTHER
Source sentences:
text: Intestinal bacteria also play a role in synthesizing vitamin B and vitamin K as well as metabolizing bile acids, sterols, and xenobiotics.
text: There's plenty of research on probiotics that show that bacteria play a role in happiness.