Q: E-mail question: I am wondering how fast food goes through your digestive system.
A: Dean Edell, M.D.: There are studies where people swallow little colored beads to see how long it took for the beads to get through the bodily processes.
It does not go through immediately for anyone. The average is about 18 to 28 hours.
I know a lot of you feel that it goes more quickly than that, and fluids or gas may be quicker, but in terms of classic experiments on the intestinal system of the human being, it takes about a day for something to go through your mouth to the other end.
Certain disease states in certain people can cause things to move more rapidly.