Studies in laboratory settings have found that this herb kills cancer cells and stimulates the immune system. It has also been studied in European clinical trials as a cancer treatment. There have been some positive outcomes from these trials, but all of these trials have had major design weaknesses that makes the findings questionable.
Raw mistletoe is poisonous and can cause vomiting, seizures, slowing of the heart rate, and even death. Only European mistletoe can be used medicinally as the American mistletoe is unsafe.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.