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Herb Profile

Marshmallow

Althaea officinalis

Marshmallow (Althaea officinalis) carries a Grade C rating — limited evidence.

Last reviewed: Report a correctionProfile-wide ·C Limited

Use extra caution — May slow absorption of oral medications if taken together. Details

Evidence
Limited Evidence
Typical onset
Varies by prep
Safety rating
Moderate caution
Best for
Anti Inflammatory, Inflammatory signaling
Avoid / review if
Difficulty Swallowing, Severe GI Obstruction Risk, And Use In Infants Without Supervision.
Marshmallow monograph visual
Generated profile category visual

At a glance

From this profile's structured data
Evidence
Grade C
Safety
May slow absorption of oral medications if taken together.
Profile context
anti-inflammatory
Next steps

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Safety

Safety & Cautions

May slow absorption of oral medications if taken together. Use caution with diabetes medications because mucilage/fiber may affect glucose handling.

Elevated caution

Caution level: Elevated. One caution category applies — read it before use.

Detailed safety fields

Pregnancy, breastfeeding, and contraindications

  • Difficulty Swallowing
  • Severe GI Obstruction Risk
  • And Use In Infants Without Supervision.
  • Monitor With Antidiabetic Therapy.

Full safety note

  • May slow absorption of oral medications if taken together. Use caution with diabetes medications because mucilage/fiber may affect glucose handling.

Evidence-based safety

Caution when combined

Severity and certainty are shown separately. A high-priority caution can still be theoretical: these pairings are screened from shared contraindication mechanisms and are not automatically documented clinical interactions. Provenance identifies the source fields that produced each flag; it does not upgrade the certainty of the pairwise claim.

Moderate Caution

110 flagged pairings

Blood-sugar lowering

Representative pairings are shown below. Large mechanism groups are intentionally summarized to keep profiles focused and crawl-efficient.

Blood-sugar loweringCertainty: Theoretical

Data provenance recorded for 110 of 110 pairings in this mechanism group.

+98 more pairings share this mechanism. Use the Safety Checker to review a specific combination.

Evidence

Evidence Summary

Evidence lens

Read as directional context, not settled clinical proof.

LimitedLimited Evidence

Human clinical evidence: Not the primary signal

Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation

Research maturity: Theoretical / mechanistic research — Mechanistic or unresolved evidence is kept separate from established human outcomes.

Safety boundary: Safety note available — May slow absorption of oral medications if taken together.

Study design details
Evidence Grade

Grade C: Limited Evidence

Evaluation of methodological rigor, population reach, and evidence alignment.

Design Match
Narrative review
Risk of Bias
High
Consistency
Not assessed
Strongest recorded design is a narrative review, drawn from 1 recorded study, none of which measured an outcome in people.
How evidence grades work

Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.

Strong
Multiple RCTs, consistent direction, adequate effect size
Moderate
Some RCTs or consistent observational data in humans
Preliminary / Mixed
Animal or in-vitro only, or conflicting human data
Traditional / Theoretical
Traditional use only; no controlled human trials
Clinical Study Summaries (1)0 human evidence sources · 0 human trials · Participant totals not consistently reported · Consistency not yet classifiable

What the evidence actually shows

This table contains 1 structured source, including 0 human evidence sources; 0 are human trials.

StudyDesignNDoseDurationPopulationOutcomeResult & magnitudeSource

A review of marshmallow root preparations found supportive but limited evidence for symptomatic relief of dry cough and irritation, with much of the clinical information observational/traditional rather than robust randomized efficacy data.

Background
Narrative review

Summarizes selected literature without the full prespecified search and selection methods of a systematic review.

—————A review of marshmallow root preparations found supportive but limited evidence for symptomatic relief of dry cough and irritation, with much of the clinical information observational/traditional rather than robust randomized efficacy data.PubMed →

Dosing & Timing

No standardized dose
Preparation specific; use standardized product label for Cold infusion or mucilage rich preparations are most aligned with traditional demulcent use. and require source backed dosage review before therapeutic claims.
How Marshmallow works

Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.

Mechanism Pathway — How Marshmallow Works

How Marshmallow WorksMarshmallow acts on biological target pathways via anti inflammatory, leading to anti inflammatory.MarshmallowBiological TargetBiological pathwayAnti InflammatoryAnti InflammatoryObservable outcomeGlucoseRegulation
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & biological pathways (preclinical)
  • Inflammatory Signaling Modulation

Compare related active botanicals

Explore botanicals with similar chemistry, effects, or safety considerations in the Botanical Activity Atlas.

Guides that use Marshmallow

Condition guides

Compare & Sourcing

Compare side-by-side tradeoffs or verify active marker guidelines.

Safety first · Harm reduction

This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.

Learn how we evaluate confidence, safety, and intensity on the methodology page.

Editorial Review

Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.

Editorial Standards →

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