Marshmallow root is generally considered safe for most people when taken in recommended doses. However, as with any herb or supplement, there is the potential for side effects, especially if taken in excessive amounts. Here are some of the potential side effects of marshmallow root:
Upset stomach: Consuming large amounts of marshmallow root may cause gastrointestinal discomfort such as nausea, bloating, or diarrhea. Allergic reactions: Individuals with a known allergy to plants in the mallow family, such as hibiscus, may also be allergic to marshmallow root and experience symptoms such as itching, hives, or difficulty breathing. Low blood sugar: Marshmallow root may lower blood sugar levels, which can be dangerous for individuals with diabetes or those taking medications to lower blood sugar levels. Interference with medication absorption: Marshmallow root may interfere with the absorption of certain medications (especially certain antibiotics, diuretics and sedatives), so it's important to speak with a healthcare provider before taking marshmallow root if you're on any prescription medications. It's always a good idea to speak with a healthcare provider before adding any new herb or supplement to your diet, especially if you have a pre-existing medical condition or are taking prescription medications.