Causes of gastrointestinal intolerance
| Cause | Examples |
|---|---|
| NSAIDs, non-steroidal anti-inflammatory drugs; PPIs, proton pump inhibitors. | |
| Feed delivery site and rate | High rate, post pyloric feeding |
| Feed type | Low fibre feeds |
| Drug related | Laxatives, antibiotics, NSAIDs, PPIs, antiarrthymics, antihypertensives, drugs containing magnesium and sorbitol fillers, etc. |
| Infective | Contaminated feeds, small bowel overgrowth, Clostridium difficile |
| Lactase deficiency | Primary and secondary |
| Fat malabsorption | Pancreatic dysfunction, liver disease, coeliac disease. |