Nutritional Supplement
Mallow
Parts Used & Where Grown
Mallow originates from southern Europe and Asia but has spread all over the world as a common weed. Its cousin, the dwarf mallow (Malva neglecta), is another Eurasian plant that has spread far and wide. Other similar plants in the same family (Malvaceae) are hibiscus and marshmallow. The dried or fresh flowers and leaves of high mallow and dwarf mallow are used as food and medicine.
How It Works
Like its close relative marshmallow (Althea officinalis), mallow leaves and flowers contain high amounts of mucilage.1 Mucilage, made up of complex carbohydrates, gives mallow most of its soothing activity, though flavonoids and anthocyanidins may also contribute. In herbal medicine, mallow is classified as a demulcent—a soothing agent that counters irritation and mild inflammation. Both mallow leaf and flower preparations are approved by the German Commission E for relief of sore throats and dry coughs.2 Mallow is typically used as a tea or gargle for these indications.
In test tube studies, one carbohydrate in mallow has been shown to inhibit a component of the immune system known as the complement cascade.3 Excessive activation of the complement cascade has been implicated in chronic inflammation and autoimmune disorders, suggesting that further research on mallow in these areas is warranted. A polysaccharide from the seeds of a related mallow (Malva verticillata) stimulated white blood cells known as macrophages in a test tube study.4 Crude powder of one mallow species showed anticancer effects in another test tube study.5