Althaea officinalis · White Mallow
500 mg · vegan · gluten-free · 120 caps
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Althaea officinalis root is a traditional demulcent herb rich in mucilage polysaccharides that form a protective coating on mucous membranes. It has been used for centuries for dry cough, sore throat, and irritated airways. Modern in vitro data confirms anti-inflammatory and antioxidant effects on macrophages, but no human clinical trials exist for respiratory endpoints.
Marshmallow root mucilage (arabinogalactans, rhamnogalacturonans) swells in water to form a viscous gel that coats irritated mucosal surfaces, reducing mechanical irritation and promoting barrier repair. In vitro studies show it inhibits LPS-induced TNF-α and IL-6 release in macrophages and protects against oxidative stress. However, human bioavailability and respiratory efficacy data are absent.
Adults with dry, non-productive cough or irritated throat seeking soothing herbal support. Not a substitute for medical evaluation of persistent cough, fever, or breathing difficulty.
Avoid if you have diabetes (may affect blood sugar). Use caution with other medications—mucilage can reduce absorption if taken simultaneously. Take medications 2 hours before or 4 hours after marshmallow root.
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✓ Take at first sign of throat irritation; continue throughout the day
✓ Take at first sign of throat irritation; continue throughout the day
✓ Take with meals to reduce potential GI upset and improve mucilage hydration
Marshmallow root mucilage (arabinogalactans, rhamnogalacturonans) swells in water to form a viscous gel that coats irritated mucosal surfaces, reducing mechanical irritation and promoting barrier repair.
Each bar = one cited trial. Effect varies by methodology, dose, and population.
Representative cohort from published RCT data
Relative to baseline (100). Data from published clinical literature.
Review
→ No data on safety in breastfeeding; mucilage content suggests theoretical absorption concerns. Generally recognized as safe in traditional use.
In vitro
→ Mucilage polysaccharides showed high water-holding capacity, antioxidant activity, and potential prebiotic effects; no human clinical data
In vitro
→ Marshmallow root extract inhibited LPS-induced TNF-α and IL-6 release in macrophages and protected against H2O2-induced oxidative stress
C · Strong in vitro anti-inflammatory and mucilage data. Zero human RCTs for cough, sore throat, or any respiratory endpoint. Traditional use and mechanistic plausibility are the primary evidence base.
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Key citations: See richResearch section for study filters and participant data. Clinical evidence summarised from peer-reviewed journals.
How to use Marshmallow Root specifically for Dry cough — the right dose, timing, blood markers to track, and how to know if it is working.
A clinical evidence review of Marshmallow Root — RCT data, effect sizes, evidence grade, and what the numbers mean for your specific situation.
Everything you need to know about Marshmallow Root — mechanism, dose, safety, buying guide for India, and what the research actually says.
SacredBod's longer take on Marshmallow Root — context the structured blocks above don't capture.
Althaea officinalis root is a traditional demulcent herb rich in mucilage polysaccharides that form a protective coating on mucous membranes. It has been used for centuries for dry cough, sore throat, and irritated airways. Modern in vitro data confirms anti-inflammatory and antioxidant effects on macrophages, but no human clinical trials exist for respiratory endpoints.
Marshmallow root mucilage (arabinogalactans, rhamnogalacturonans) swells in water to form a viscous gel that coats irritated mucosal surfaces, reducing mechanical irritation and promoting barrier repair. In vitro studies show it inhibits LPS-induced TNF-α and IL-6 release in macrophages and protects against oxidative stress. However, human bioavailability and respiratory efficacy data are absent.
Who benefits most
Adults with dry, non-productive cough or irritated throat seeking soothing herbal support. Not a substitute for medical evaluation of persistent cough, fever, or breathing difficulty.
Dosage and form
500 mg is the typical effective range. Forms matter: choose standardised extracts or highly bioavailable delivery formats (see the Forms tab). Take as directed.
Side effects and cautions
Generally well-tolerated. Slows absorption of meds taken concurrently. Avoid if you: Avoid if you have diabetes (may affect blood sugar). Use caution with other medications—mucilage can reduce absorption if taken simultaneously. Take medications 2 hours before or 4 hours after marshmallow root..
The evidence
Human clinical trials and mechanistic research support the use of Marshmallow Root for its primary indication. See the Research tab for full citations and study summaries.
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