From the Guidelines
To bulk the stool, it is recommended to increase fiber intake through dietary changes and supplements, aiming for 25-30 grams of fiber daily, as supported by the most recent study 1. The best approach to bulking stool involves a combination of dietary modifications and fiber supplements. Key dietary sources of fiber include:
- Whole grains
- Fruits, such as apples, pears, and berries
- Vegetables
- Legumes, including beans and lentils
- Nuts and seeds Increasing fiber intake should be done gradually to avoid gas and bloating. Effective fiber supplements include:
- Psyllium husk (Metamucil), 1 tablespoon in water 1-3 times daily
- Methylcellulose (Citrucel), 1 tablespoon in water 1-3 times daily
- Wheat dextrin (Benefiber), 2 teaspoons in liquid 1-3 times daily Staying well-hydrated by drinking 8-10 glasses of water daily is also crucial, as fiber absorbs water to create bulkier stools. Regular physical activity helps stimulate bowel movements, further reducing constipation and improving bowel regularity 1. If symptoms persist despite these measures, it is essential to consult a healthcare provider to rule out underlying conditions. Other options for managing constipation include osmotic laxatives like polyethylene glycol or lactulose, and bulk-forming agents such as psyllium husk or methylcellulose, which are safe during pregnancy 1. Additionally, a varied and balanced diet that includes probiotic and prebiotic foods can support gut health and prevent constipation 1.
From the FDA Drug Label
Patients were allowed to continue previously stable doses of bulk laxatives, fiber, stool softeners, or probiotics. The options to bulk the stool are:
- Bulk laxatives
- Fiber
- Stool softeners
- Probiotics 2
From the Research
Options to Bulk the Stool
- Increasing dietary fiber intake can help bulk the stool, with options including polycarbophil, methylcellulose, or psyllium 3, 4, 5, 6
- A high-fiber diet with adequate fluid supplementation can enhance the effect of fiber on stool frequency and laxative consumption 7
- Specific fiber supplements that may be effective include:
- It is recommended to slowly increase fiber intake over several weeks to decrease adverse effects 3
- Adequate fluid intake is also important, with a recommended daily intake of 1.5-2.0 liters 7