General Dosage
500-1,500mg root powder daily in divided doses, or cold infusion (2-5g root in cold water)
Maximum dose: No established upper limit; EMA suggests up to 15g/day of dried root as infusion
Marshmallow Root Dosage Guide
Evidence:Preliminary
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Dosage Recommendations
General recommendation: 500-1,500mg root powder daily in divided doses, or cold infusion (2-5g root in cold water)
Timing: Before meals for GERD; between meals for general gut soothing
Dosage by Condition
GERD/heartburn
500mg before mealsPreliminary
Gastritis/GI irritation
1,000-1,500mg daily in divided dosesPreliminary
Cough/throat soothing
Tea or lozenge as neededPreliminary
| Condition | Recommended Dose | Evidence |
|---|---|---|
| GERD/heartburn | 500mg before meals | Preliminary |
| Gastritis/GI irritation | 1,000-1,500mg daily in divided doses | Preliminary |
| Cough/throat soothing | Tea or lozenge as needed | Preliminary |
Upper limit: No established upper limit; EMA suggests up to 15g/day of dried root as infusion
Timing & Absorption
Before meals for GERD; between meals for general gut soothing
Can be taken with or without food.
References
- ReviewAl-Snafi AE. (2013). The pharmaceutical importance of Althaea officinalis and Althaea rosea: a review. International Journal of PharmTech Research.
- ReviewEuropean Medicines Agency. (2016). Assessment report on Althaea officinalis L., radix. EMA/HMPC Committee on Herbal Medicinal Products.
- ReviewSteinmann D, Babadağ Savaş B, Felber S, Joy S, et al. (2021). Nursing Procedures for the Prevention and Treatment of Mucositis Induced by Cancer Therapies: Clinical Practice Guideline Based on an Interdisciplinary Consensus Process and a Systematic Literature Search.. Integrative cancer therapies. DOI PubMed
- RCTPopovych V, Koshel I, Malofiichuk A, Pyletska L, et al. (2019). A randomized, open-label, multicenter, comparative study of therapeutic efficacy, safety and tolerability of BNO 1030 extract, containing marshmallow root, chamomile flowers, horsetail herb, walnut leaves, yarrow herb, oak bark, dandelion herb in the treatment of acute non-bacterial tonsillitis in children aged 6 to 18 years.. American journal of otolaryngology. DOI PubMed