European Mistletoe

BotanicalBest with a meal

What is it

European mistletoe (Viscum album) is a parasitic plant used in European anthroposophic medicine, especially as Iscador-style injectable preparations for cancer supportive care. The dried herb is also used in cardiovascular and immune formulas.

Evidence for 2 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Cancer supportive care (quality of life)

Limited Evidence

Several European trials of injectable mistletoe suggest improved quality of life and reduced chemotherapy side effects in some cancers. Evidence for survival benefit is weaker and contested.

Oral use for hypertension

Mixed Evidence

Traditional use is widespread but modern clinical evidence is limited.

How it works

Viscum album contains lectins (especially mistletoe lectin I), viscotoxins, polysaccharides, and flavonoids. Mistletoe lectins can induce apoptosis and stimulate immune cells in laboratory models. Injectable mistletoe extracts are used as adjunctive cancer care in parts of Europe, primarily to improve quality of life rather than as anticancer therapy. Oral mistletoe is traditionally used for hypertension and as a 'calmative,' but oral bioavailability of lectins is poor and effects are likely much weaker than injectable forms.

Dosage

Injectable mistletoe is dosed by an anthroposophic physician. Oral tea or tincture uses small amounts (1-3 g daily traditionally).

When and how to take it

Injectable: per physician schedule. Oral: per product label, typically with food.

2 commercial forms

Compare the main delivery options and what they’re best suited for.

Injectable mistletoe (Iscador, Helixor, Abnoba)

European anthroposophic medicine form.

Subcutaneous administration bypasses gut degradation.

Oral mistletoe tea / tincture

Traditional Western herbal form.

Lectin bioavailability is poor orally.

Safety

Injectable mistletoe causes local reactions, mild flu-like symptoms, and rare allergic reactions. Oral high doses can be toxic. Berries are poisonous and should not be eaten.

Who should be cautious

Avoid in pregnancy. People with autoimmune disease, on immunosuppressants, or undergoing chemotherapy should only use under specialist supervision. Mistletoe berries are toxic; do not consume.

Interactions

Theoretical interactions with immunosuppressants and chemotherapy; integrative oncologists supervise concurrent use. Cardiovascular effects may interact with blood pressure medications.

Frequently asked questions

Does mistletoe cure cancer?⌄

No. Injectable mistletoe is used as supportive care in some European protocols, not as a curative treatment. Evidence is mixed and survival benefit is uncertain.

Are mistletoe berries safe?⌄

No. Berries are toxic and should not be consumed.

References

European Mistletoe on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on European Mistletoe (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.