Marshmallow Root

Soothing mucilaginous root providing protective coating and anti-inflammatory support for digestive and respiratory health

Scientific nameAlthaea officinalis FormulaVarious mucilaginous polysaccharides Molecular weightVariable mucilaginous compounds g/mol CASVarious natural compounds

65 absorption score

9 safety / 10

25 USD per month

5 documented interactions

Check it against something

Evidence level C

Marshmallow Root with:

80 out of 100

Works better together Take together — same timing window amplifies the synergy.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Digestive tract soothing and protection

Forms protective mucilaginous coating over irritated digestive surfaces

High mucilage content creates soothing gel barrier on mucous membranes Evidence B-grade 30 minutes to 4 hours

Anti-inflammatory digestive support

Reduces inflammation in digestive tract and supports healing

Polysaccharides provide anti-inflammatory effects and tissue protection Evidence B-grade 1-6 weeks

Respiratory tract soothing

Soothes irritated throat, cough, and respiratory inflammation

Mucilaginous coating protects and soothes respiratory mucous membranes Evidence B-grade 15-60 minutes

Skin healing and protection

Traditional external use for wound healing and skin inflammation

Anti-inflammatory and protective compounds support skin healing Evidence C-grade 1-4 weeks

Urinary tract soothing

May provide soothing support for urinary tract irritation

Mucilaginous compounds provide protective coating in urinary system Evidence C-grade 2-8 hours

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Probiotics for Autoimmune Disease Support Gut health & immune modulation 10-100 billion CFU daily B 60% Magnesium Glycinate Superior absorption sleep & muscle support 200-600 mg A 90% Magnesium Citrate Balanced absorption & digestive support 300-600 mg A 35% Chloride Electrolyte & digestive support 2300mg A 95% Bone Broth Collagen Gut healing & collagen support 20-40g powder B 85% Psyllium Husk Digestive health & cholesterol support 5-15g A 95%

Every pair we checked

12 combinations scored by the engine

Marshmallow Root + Caffeine No documented interaction either way No known interaction 70

Marshmallow Root + Creatine Monohydrate No documented interaction either way No known interaction 70

Marshmallow Root + Vitamin D3 No documented interaction either way No known interaction 70

Marshmallow Root + Calcium Carbonate No documented interaction either way No known interaction 70

Marshmallow Root + Whey Protein No documented interaction either way No known interaction 70

Marshmallow Root + Lactase No documented interaction either way No known interaction 70

Marshmallow Root + Bovine Collagen No documented interaction either way No known interaction 70

Marshmallow Root + DHA No documented interaction either way No known interaction 70

Marshmallow Root + Turmeric No documented interaction either way No known interaction 70

Marshmallow Root + Chamomile Enhanced anti-inflammatory and calming effects Works better together 75

Marshmallow Root + Slippery Elm Enhanced mucilaginous protective and soothing effects Works better together 80

Marshmallow Root + Aloe Vera Synergistic anti-inflammatory and healing effects Works better together 80

Dosage

Between meals or as needed

Daily500-1000mg

Digestive protection500-1000mg daily

Respiratory soothing500mg or 1-2g as tea

Anti inflammatory500-1000mg daily

Skin support500mg daily plus topical use

Before you take it

VeganYes

When to expect it

First Effects30 minutes to 4 hours for protective coating and soothing

Peak Benefits1-6 weeks for sustained anti-inflammatory and healing effects

Deficiency DevelopmentNot applicable - herbal supplement

Toxicity OnsetVery rare, mainly drug absorption concerns

How to measure it

$40-80

MarkerBlood glucose if diabetic, otherwise symptom-based assessment

OptimalNormal blood glucose, improved tissue comfort

Deficient belowNot applicable for herbal supplement

FrequencyMonitor blood glucose if diabetic, otherwise symptom improvement

What people actually reported to the FDA

CAERS, 1 reports naming it as the suspect

Most reported effects

Abdominal discomfort 1

Abdominal distension 1

Abdominal pain 1

Appetite disorder 1

Diarrhoea 1

Named as the suspect 1 reports of 2 that mention it at all

Serious outcome 0% hospitalisation, emergency room or worse

Visited a Health Care Provider1

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not

Absorption High 65 of 100 · absorbs well relative to other forms

Delivered daily 487.5 mg

Cost per 100 mg delivered $0.17 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

Slippery Elm

Enhanced mucilaginous protective and soothing effects

Both provide complementary protective mucilaginous coating · level C

Aloe Vera

Synergistic anti-inflammatory and healing effects

Complementary soothing and tissue healing properties · level C

Chamomile

Enhanced anti-inflammatory and calming effects

Complementary anti-inflammatory and soothing mechanisms · level C

What not to take with Marshmallow Root

2 documented

Oral Medications

May reduce absorption of oral medications

Mucilaginous coating may interfere with drug absorption · moderate significance

Stimulating Herbs

May counteract some stimulating or heating herbs

Cooling and soothing effects oppose stimulating properties · mild significance

Medication interactions

Discuss these with a pharmacist before combining

oral-medications-general Moderate

May slow or reduce absorption of oral medications

What to do: Take medications 2-3 hours before or after marshmallow

diabetes-medications Minor

May affect blood glucose levels

What to do: Monitor blood glucose levels

lithium Minor

May affect lithium elimination

What to do: Monitor lithium levels

Available forms

bioavailability compared

Marshmallow Root Extract (Standardized Mucilage) 65

Marshmallow Root Extract (Standardized Mucilage): Excellent safety, Soothing protection, Anti-inflammatory, Traditional use

Food sources

before you supplement

Marshmallow root powder High mucilage content (up to 35%) · 60

Marshmallow root tea Moderate mucilage extraction · 50

Standardized extracts Concentrated mucilaginous compounds · 65

Not found in common foods Root preparation required · N/A

Too little

deficiency signs

Not applicable (herbal supplement, not essential nutrient):
General symptoms addressed by marshmallow root:
Digestive tract irritation and inflammation
Respiratory irritation and cough
Sensitive or damaged mucous membranes
Skin inflammation and slow healing
Urinary tract irritation

Too much

toxicity signs

Extremely safe with minimal side effects:
Potential drug absorption interference
Mild blood sugar effects
Rare allergic reactions
Generally excellent safety profile

Who benefits most

digestive-inflammation-irritation

Excellent protective and anti-inflammatory support for digestive tract

500-1000mg daily or 2-3g root powder

respiratory-cough-throat

Soothing mucilaginous support for respiratory irritation and cough

500mg or 1-2g powder as tea

gut-lining-protection

Protective coating supports healing of sensitive or damaged gut lining

500-1000mg daily

skin-healing-inflammation

Traditional external and internal use for skin healing support

500mg daily or topical preparations

urinary-tract-irritation

Soothing support for urinary tract inflammation and irritation

500mg twice daily

Where to buy it

compare forms first

Look for Marshmallow Root at 500-1000mg per serving. The form that matters here is Marshmallow Root Extract (Standardized Mucilage).

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How it works

High mucilage content forms protective gel coating on mucous membranes
Anti-inflammatory polysaccharides reduce tissue inflammation
Soothing and cooling effects provide immediate comfort
Protective barrier shields tissues from irritants and acid
Promotes tissue healing through gentle anti-inflammatory action
Demulcent properties provide lasting protective coating

Key findings

what the evidence supports

Strong traditional use evidence for soothing and protective effects
Excellent safety profile with minimal contraindications
Effective mucilaginous coating properties for tissue protection
Promising anti-inflammatory effects but limited modern clinical research

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Marshmallow Root?

Documented effects: Digestive tract soothing and protection; Anti-inflammatory digestive support; Respiratory tract soothing; Skin healing and protection. Forms protective mucilaginous coating over irritated digestive surfaces

How much Marshmallow Root should you take per day?

The common daily range is 500-1000mg. By goal — digestive protection: 500-1000mg daily; respiratory soothing: 500mg or 1-2g as tea; anti inflammatory: 500-1000mg daily; skin support: 500mg daily plus topical use.

When is the best time to take Marshmallow Root?

Between meals or as needed. First effects are typically reported within 30 minutes to 4 hours for protective coating and soothing.

What are the side effects of Marshmallow Root?

At excessive doses: Extremely safe with minimal side effects:, Potential drug absorption interference, Mild blood sugar effects, Rare allergic reactions, Generally excellent safety profile. Safety rating at normal doses is 9 out of 10.

What should you not take with Marshmallow Root?

Separate it from Oral Medications, Stimulating Herbs by two to four hours. May reduce absorption of oral medications

Does Marshmallow Root interact with medications?

Documented interactions with oral-medications-general, diabetes-medications, lithium. Discuss these with a pharmacist before combining.

How do you know if you need Marshmallow Root?

The marker is Blood glucose if diabetic, otherwise symptom-based assessment, optimal range Normal blood glucose, improved tissue comfort. Common deficiency signs: Not applicable (herbal supplement, not essential nutrient):, General symptoms addressed by marshmallow root:, Digestive tract irritation and inflammation, Respiratory irritation and cough.

Taken for

74 Digestion

Lactase · Lactobacillus acidophilus · Protease