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DigestionWeak evidence

Marshmallow root

Also known as: Althaea officinalis

Marshmallow root is rich in mucilage that forms a protective layer on mucous membranes. The European Medicines Agency recognises its traditional use for dry cough, throat irritation and mild stomach complaints.

What it is used for

  • dry irritating cough and sore throat – weak evidence, traditional use recognised by the EMA
  • mild stomach complaints – weak evidence, traditional use

Forms and how they differ

cold root infusion

mucilage is released best in cold water

root capsules

take with plenty of water

syrup

practical for coughs

When to take it

Between meals; for coughs several times a day.

Pairs well with

Slippery elm, thyme for coughs.

Do not combine / separate

Take medicines at least 1–2 hours apart – the mucilage may slow their absorption.

Watch out for

With diabetes watch the sugar in syrups. A cough lasting more than a week or with fever should be checked by a doctor. During pregnancy or breastfeeding, with kidney or liver disease, or when taking medicines, consult your doctor.

Safety

Generally very well tolerated. Do not exceed the label dose.

Practical tip

Cover the root with cold water and let it stand for 1–2 hours – the infusion is gentler and more mucilaginous than a decoction.

Products containing Marshmallow root 1

Marshmallow root 500 mgroot · 500 mg / capsuleDigestion & gutImmunity
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence

Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.

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From the same group

Acacia fibreWeak evidenceActivated charcoalModerate evidenceAloe veraWeak evidenceApple fibreModerate evidenceArtichokeWeak evidenceBetaine HClWeak evidence
Important notice

This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.