As food passes through the digestive system, changes can lead to:

While it is possible for certain nutrients to be poorly absorbed due to various conditions, this choice does not directly relate to the changes that specifically lead to constipation. The statement focuses on nutrient absorption issues rather than the impact on bowel movements resulting from food passage through the digestive system.

Increased diarrhea is typically caused by rapid transit through the intestines or insufficient absorption of water, which is the opposite of what occurs when food leads to increased constipation. Thus, this choice contradicts the effects of slower transit time that results in constipation.

Bowel incontinence refers to the involuntary loss of bowel control, which is not a direct result of food passing through the digestive system leading to constipation. This option addresses a different digestive issue related to muscle control rather than the absorption and movement of food that contributes to constipation.