how long does it take for food to fully digest through your body system?

Answer 1

Depends on your metabolism. Sometimes it takes me two hours to be hungry again.

Answer 2

As for many of the answers, I worry at the condition of biolagy teachers accross this country. But my spelling is just as poor, but my A-level biology will explain the answer.
The qualify the question first, digestion is the time when it enters your mouth until it's remains is stored for disposal (not excreted) in the large intestines.

Digestion is a lengthy process, first mastication (chewing) and salivary amylase (starch converting enzyme) from under the tongue begin to work with a pH 7.1, if you chew bread long enough it will eventually start to taste a little sweet. A few minutes later the food reaches the sphincter muscle connecting the aspheogus to the stomach.

The first answer of three hours is reasonable, if the question was "how long does a full meal takes to digest in the human stomach?" though this is approximate for fast metabolisms (someone else used this word), slower ones will take four hours. Here pH 1 / pH 2 stomach acids desolve most compounds and new amalyse, pectin (protiens) and many more enzymes go to work.

Basel Metabolic Rate: the ability for a biological entitiy to undergo it's chemical processes.

Next the small intestines, devided into the deodenum, juodenum and illium. Here the pH swing to the alkaline level of 13 and gradually falls back to neutral of 7. A fresh batch of enzymes are secreted (enzymes are very pH specific) and do the last breack downs before abosrbtion using villii (villium is a finger like projection designed to increase surface area and mix up the chemical soup!). This take hours depending on the food content and richness, complex protiens from mean take longer.

Finally is the large intestines and colon, this is only for water absorbtion and needs to takes half / a whole hour, but can go on longer if you can't find a tiolet!

So to sum up, 18 hours is for people with a quick BMR, 24 for more average humans.

Answer 3

If your digestive system is in good health, approximately 24 hours from chewing to excreting. Illness, GI Tract infection, certain foods can slow or speed this up.

Food arrives in the stomach within seconds of swallowing due to peristaltic waves. It is churned and partially digested in between one and four hours. The broth of nutrients (chyme) is then squirted into the small intestine where the bulk of digestion and absorption takes place. It then is slowly moved into the large intestine (colon) whose main function is water extraction from the material, which is then temporarily stored in the rectum prior to expulsion under voluntary control

Of course there is great individual variation, some folk poo every day, others every week with no ill effects. Dont listen to those who say we should excrete after every meal and if we dont we get a colonic - bullcrap of the first order!

Answer 4

The digestion process and time for food to travel from one end to the other probably ranges from about 20 to 30 hours. The process includes the oral cavity, the esophagus, stomach, small intestine, and colon. All food should have left the stomach part within 2 to 4 hours.

Answer 5

It depends on your metabolism and the kind of food youre eating. For exemple, if you eat a hamburguer (difficult digestion) and after, youll go sleep (low metabolism). Certainly, the digestion would take at least 8 hours. But if you eat a piece of bread and go cupper, the digestion take 1.30h in maximum.

Answer 6

That depends on the food. Large chunks of meat could stay in your stomach for 2 or 3 days, where plant based food usually is gone in a number of hours.

If you need to get cleaned out for a colonoscopy, they put you on a liquid diet for 3 days to get all of the solids out of your system.

Answer 7

I know that if you go for a barium meal/stomach examination, you are told to fast for 12 hours before - your stomach should be empty after 12 hours. If not then that indicates a problem. The time for the food to get through your bowels, I'm not too sure.

Answer 8

Depends on what you eat, but roughly four hours.

Fluids will be absorbed and expelled within an hour, depending on how well hydrated you are. Some foods will go through you quicker ofcourse, and eating just protein will make it take half a day sometimes.

Answer 9

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Answer 10

3 days

Answer 11

Depends on your metabolism, and if you drank the water in Tijuana. Normally 16 to 24 hours, unless there is a malfunction going on in the system.