Side Effects of Dandelion Root

Dandelions are common weeds that grow all around the world. Traditional medicine (i.e. folk medicine) incorporated dandelion root in the treatment of liver-related problems, while Native Americans historically used it to treat kidney disease. Modern herbalists use dandelion root as a digestive aid and to aid functions of the liver and gallbladder. While this root has many positive health-related attributes, some side effects are associated with dandelion root.

Stomach Problems

• Dandelion root may cause minor stomach-related problems.

  According to the National Center for Complementary and Alternative Medicine (NCCAM), rare cases of upset stomach and diarrhea have resulted from the use of supplemental dandelion root. In addition, the University of Maryland Medical Center (UMMC) reports that dandelion root can cause increased stomach acid and heartburn in some individuals.

Allergic Reactions

• Tissues for rhinoconjunctivitis

  Information complied by the Natural Standard Database (via the faculty of Harvard Medical School) reports cases of allergic reactions in individuals that have ragweed allergies or allergies to sunflowers, dandelions, honey, chamomile, yarrow, feverfew or chrysanthemums. Typical allergic reactions include skin rash, itching and swelling. Rare cases of asthma and rhinoconjunctivitis (i.e. runny nose) have occurred when dandelion root was present in a combination (i.e. containing several different ingredients) herbal product. In addition, rare but multiple reports of parasitic infection exist, wherein the liver and bile duct was adversely affected after dandelion root ingestion.

Negative Drug Interactions

• Blood sugar monitor

  Although dandelion root has the potential to interact negatively with certain drugs, most of these reactions are merely theory-based and unsupported by significant scientific data. However, since scientists believe dandelion root may reduce blood sugar levels, diabetics should consult with a doctor before incorporating any form of the root into their diet. Additionally, dandelion root may increase the toxicity of drugs that lower blood pressure and the root may increase the risk of bleeding when taken with anticoagulants. Lastly, dandelion root may interfere with your liver's ability to break down certain drugs and if you are on any prescription medication, you should check with your doctor before taking supplements that contain this root.