Between 12 & 72 hours. Depends on what you eat.
http://www.annecollins.com/food-digestion-guide.htm
The metabolism of your body helps to breakdown and digest food. The solid waste is store in large intestine of your body, from where it is discharged through anus.
You eat every day, and you digest food every day, and you need to get rid of the waste produced after you are done getting the nutrients form that food you eat and digest every day.
undigested food
They take a day or two to digest the food. Then it turns into unwanted waste and they body must get rid of it. So the turtle simply excretes the waste through the rectum and moves on.
Fiber helps you digest food, eliminate waste, and regulate blood sugar levels. It also gives you a sense of satiety.
by your brain
Your body must digest food to get energy from the vitamins, nutrients, and all the other stuff your body needs to survive.
Lysosomes
Enzymes.
You digest your food so that your body can absorb all the nutrients in the food and poo wee wee
to digest the food.
It will not be possible for you to digest the food. If you can not digest the food, you will not survive.