How Does Diarrhea Affect Absorption?

How Does Diarrhea Affect Absorption? Laxatives and diarrhea, which speed up the passage of substances through the digestive tract, may reduce drug absorption. Surgical removal of parts of the digestive tract (such as the stomach or colon) may also affect drug absorption. Does diarrhea affect food absorption? Diarrhea contributes to malnutrition through reduction in food