Transit time for beets in stools?

Variable per patient: Bowel frequency in america varies from 3 movements daily to 1 every three to four days. Much of this variablity is dependent on colonic transit. As measured by sitz marker study (a capsule that releases 24 plastic rings in the stomach that then are recorded by x-ray as they move forward in the gut), normal evacuation is defined as >80% rings defecated by 5 days after sitz marker ingestion.