Methylcellulose (Citrucel)
Fiber supplement. Increases stool bulk. Not absorbed. No direct brain effect — does not cross the blood–brain barrier.
Benefits
A non-fermenting bulk-forming fiber that eases constipation with less gas and bloating than fermentable fibers.
Risks
Take with adequate water to avoid obstruction; may reduce absorption of some medications (separate dosing).
Informational only — not medical advice.
Body systems
Organs
Where to buy
Popular Methylcellulose (Citrucel) products on Amazon. Not medical advice — talk to a clinician before starting a supplement.
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Research (3)
- Review of Hydroxypropyl Methylcellulose in Artificial Tears for the Treatment of Dry Eye Disease Mysen et al. (2024) PubMed ↗
- Artificial Tears: A Systematic Review Semp et al. (2023) PubMed ↗
- Pharmaceutical amorphous solid dispersion: A review of manufacturing strategies Kumar et al. (2021) PubMed ↗
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