How Long Does it Take to Digest a Piece of Chicken, or an Apple?
Pretty much everything you eat will be digested within 6-8 hours. It will probably be out of your body after 24 hours. Different people have different timelines, and there are some foods that will hang around a bit longer, and there are some that will go through you much quicker.
The toughest part about this question is that food is not as straight forward as that. To ask how long will a piece of chicken take to digest is not a very easy question. Food is made up of different components, and your body will digest some components faster than others. Sugar is absorbed quite quickly while complex carbohydrates will take much longer, what if you eat something that has both in it?
Chicken is mainly protein, which will be a little slower than regular carbohydrates, while apples are high in sugar, which would be digested much quicker than most foods.
For a detailed description of how the digestive system works, check this link out. http://www.vivo.colostate.edu/hbooks/pathphys/digestion/index.html