Marshmallow root, or Althaea officinalis, is a flowering plant that has played a role in herbal medicine for centuries.
Many people use marshmallow root for various ailments, including coughs, skin irritation, and digestive problems, such as ulcers. It comes in the forms of a powder, capsule, tea, and cough syrup.
Researchers have not yet thoroughly investigated the effects of marshmallow root in humans. Most of the research to date has involved animal studies or very small-scale human studies, so more studies are necessary to confirm how effective the root is in humans.
In this article, we look at the evidence behind the possible benefits of marshmallow root. We also cover how to use it and the potential side effects.