Evidence supporting the use of: Marshmallow
For the health condition: Pets (supplements for)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Marshmallow (Althaea officinalis) has a long history of traditional use in both human and veterinary herbal medicine, especially for its soothing properties on mucous membranes. In pets, marshmallow root is commonly included in supplements aimed at supporting gastrointestinal health, respiratory function, and urinary tract comfort. The plant contains mucilage, a gelatinous substance that can coat and soothe irritated tissues. Historically, herbalists have used marshmallow root for conditions such as kennel cough, sore throat, gastritis, and urinary tract inflammation in dogs and cats. While there is a moderate amount of traditional anecdotal evidence supporting its use, robust scientific studies specifically in pets are limited. Some in vitro and animal model research suggests that marshmallow extract can reduce inflammation and irritation in mucosal tissues, but extrapolation to clinical efficacy in companion animals remains uncertain. Overall, the use of marshmallow in pet supplements is primarily justified by tradition and empirical experience rather than strong, direct scientific validation. Pet owners and veterinarians should consider this context when selecting supplements, and consult with veterinary professionals before use, especially for pets with underlying health conditions or those taking other medications.

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