Marshmallow
Botanical
Also known as: Althaea officinalis, Marshmallow, Althea, Marshmallow Root Extract, marshmallow root
C
Grade C💊 2-5g dried root as cold infusion, or 500-1500mg capsules daily🎯 8 primary uses🔗 3 synergies⚠️ Review warnings
Levels upVitality+50 pts
Overview
Marshmallow root is a traditional herbal remedy rich in mucilage polysaccharides that may support respiratory and digestive tract health by forming a protective coating. Limited modern clinical evidence exists, though traditional use and preliminary in vitro studies suggest potential demulcent properties.
Primary Uses
GI soothingGERDDry coughMucous membrane supportRespiratory supportCough reliefSore throat soothingDigestive tract protection
Frequently Asked About Marshmallow
How much Marshmallow should I take?
The typical effective range is 2-5g dried root as cold infusion, or 500-1500mg capsules daily. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take Marshmallow?
Away from meals and medications. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take Marshmallow with food?
Away from food for coating effect.
Does Marshmallow interact with medications?
Yes — known interactions include May slow absorption - take 2 hours apart. If you take any prescription medication, talk to your doctor or pharmacist before starting Marshmallow.
What does Marshmallow pair well with?
Marshmallow stacks well with Slippery elm, DGL, and Chamomile — these combinations either improve absorption or work synergistically toward common goals.
Who should not take Marshmallow?
Marshmallow should be avoided or used with caution by people with None significant. Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of Marshmallow?
Most people tolerate Marshmallow well. The most commonly reported side effects are May slow medication absorption. Side effects are usually dose-dependent — lowering the dose often resolves them.
Dosage
Typical range
2-5g dried root as cold infusion, or 500-1500mg capsules daily
Timing
Away from meals and medications
With food
Away from food for coating effect
Duration
As needed, generally safe long-term
Special Populations
GERD, IBD, throat irritation
Research & Studies
Search the literature now
We haven’t curated landmark studies for Marshmallowyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Mechanism of Action
- • Creates mucilage coating
- • Protects irritated tissues
- • Soothes entire GI tract
- • Traditional for dry cough
Evidence Quality
Evidence Grade C
Traditional demulcent, limited clinical research
Safety & Contraindications
Serious Warnings
- • Separate from medications
Contraindications
- • None significant
Common Side Effects
- • May slow medication absorption
Pregnancy & Breastfeeding
Consult healthcare provider
Liver & Kidney Notes
Safe
Interactions
💊 Medications
- • May slow absorption - take 2 hours apart
🧪 Supplements
- • May affect absorption - separate
🍽️ Food & Alcohol
- • Away from meals for coating
Stacking & Synergies
Pairs Well With
Avoid Combining With
Take away from medications
Best Goal Synergies
GI soothingGERDThroat/cough
Buying Guide
What to Look For
- • Root (more mucilage than leaf)
- • Organic preferred
Standardization Markers
Mucilage contentRoot quality
Adulteration risk
Low
Practical Notes
- • Cold infusion extracts most mucilage
- • Take away from medications
- • Gentle and safe
Tags
demulcentsoothingcoatingmucosaltraditional medicinemucilage-basedthroat healthrespiratory
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Last reviewed: June 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, June). Marshmallow — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/marshmallow
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.