- Mistletoe extracts are commonly prescribed in European countries to treat cancer and its side effects.
- Studies have shown that mistletoe kills cancer cells and stimulates the immune system, but human studies are lacking and unreliable.
- Mistletoe has been shown to help some people with the side effects of cancer treatments but should not be considered a replacement for standard care.
When you think of
mistletoe, you might picture a holiday season kiss beneath a festive
decoration. But the red-berried plant we’re so familiar with has a cousin that’s
known for its possible therapeutic value. European white berry mistletoe has been
studied for its potential to improve quality of life for people who have cancer.
European mistletoe grows
in in the U.K., continental Europe, and Western Asia. For more than 2,000
years, its twigs and leaves have been used in herbal remedies. Celtic druids
considered the plant to be a treatment for many illnesses. In the early 20th
century, Rudolf Steiner, a practitioner of alternative medicine, and Dr. Ita
Wegman began to use mistletoe extract to treat cancer.
Today, mistletoe is among
the most widely studied alternative therapies for cancer, according to the National Cancer Institute (NCI). Even so, the medical community remains uncertain
about whether it’s an effective treatment. The types of cancers treated vary.
Research on mistletoe
Did you know?
- Raw mistletoe is poisonous. Only highly processed mistletoe is used for medicine.
- American mistletoe, which has red berries, isn’t considered safe even after processing. Only use it for holiday décor!
- European mistletoe is approved for use in some European countries, but not in the United States.
There have been many
studies on the use of mistletoe to treat cancer, including clinical trials with
people. Most clinical trials have suggested that mistletoe can be an effective
treatment for some types of cancer. But the NCI notes that these studies have major weaknesses. That means the findings may not be accurate.
In a 2009 review, researchers found
that mistletoe extracts could boost survival rates among people with cancer. Other
studies suggest that mistletoe may reduce tumor growth and support the immune
system. But all of these studies had limits that make the findings unreliable.
The authors of the 2009 review suggest that high-quality studies are needed to learn
more about mistletoe’s benefits.
quality of life
Mistletoe may have
benefits for people with certain types of cancer. For people with breast
cancer, mistletoe may help improve their physical and emotional well-being. One
showed that mistletoe reduced side effects of chemotherapy, such as nausea,
numbness, and the feeling of pins and needles. Some study participants even
reported less hair loss. They also felt less worried and depressed, and more
Mistletoe may also help
people feel less tired when they’re going through radiation therapy. It may help
them sleep better as well. A study involving 220
patients with breast, ovarian, and lung cancer showed that those given
mistletoe experienced less fatigue, insomnia, anorexia, and nausea. For stomach
cancer, adding mistletoe to an oral chemotherapy regimen may also be
beneficial. In one study, mistletoe lowered
the frequency of diarrhea compared to those who weren’t given the extract.
is it available?
Mistletoe is available in
Switzerland, the Netherlands, and the U.K. It’s most often sold under the drug
names Iscador and Helixor. In Germany, mistletoe injections are approved as a
treatment to lessen symptoms of tumors and improve the way patients feel.
In the United States, the
Food and Drug Administration (FDA) has not approved mistletoe injections to
treat cancer. That means they aren’t available to the public. Mistletoe
extracts can be used to treat people who are involved in clinical trials.
Diluted forms of mistletoe
extract are available in the United States. These products contain small
amounts of the plant, mixed with water or alcohol. If you want to try taking
mistletoe extracts, speak to your doctor. Mistletoe has a wide range of
possible side effects. You should only take it under a doctor’s care.