ENAlongside chemotherapy, supervised exercise, good nutrition and psychological support genuinely help. Families often start elsewhere: the patient is having chemotherapy, relatives read about «natural» methods and clinics promising to «strengthen the body», and they want to do everything possible — without causing harm.
Integrative oncology in Germany means combining standard treatment with complementary methods whose effect has been tested, under the oncologist’s supervision: «alongside», not «instead». The main treatment is covered on the page on cancer treatment in Germany. Below: how this differs from alternative medicine, which methods have evidence, which are debated, how to avoid dangerous interactions and how to arrange treatment.
What integrative oncology is — and what it is not
Complementary medicine is used alongside surgery, chemotherapy and radiotherapy and helps patients cope with treatment. Alternative medicine offers to replace them — and that is dangerous. Separately, «boosting immunity» with infusions or supplements has nothing to do with cancer immunotherapy, which uses anticancer drugs prescribed by an oncologist for defined indications.
Warning signs for the family: promises of a cure, advice to refuse chemotherapy, large upfront payments, «secret» methods without scientific publications. The US National Cancer Institute advises cancer patients who want to use complementary or alternative medicine to talk with their doctor or nurse first.
Methods with proven benefit: exercise, nutrition, psychological support
Exercise has the strongest evidence. Supervised physical activity during and after treatment reduces cancer-related fatigue, an exhausting weakness that rest does not relieve, and helps preserve strength. The German guideline on complementary medicine in oncology explicitly recommends physical activity and sport to treat and prevent such fatigue. German cancer centres offer exercise therapy.
Nutritional counselling helps patients avoid losing weight and muscle during chemotherapy, when side effects make eating difficult. «Starving the tumour» and strict diets, by contrast, do harm: people lose weight, and malnutrition makes treatment harder to tolerate. Germany’s Cancer Information Service (Krebsinformationsdienst) advises cancer patients against fasting, and the guideline advises against a ketogenic, almost carbohydrate-free diet for people of normal or low weight.
Psycho-oncology means psychological support for patient and family in fear, insomnia and depression. The guideline names mindfulness and yoga as options to consider for reducing anxiety. Acupuncture has been studied for nausea and some other complaints, such as pain: added to anti-sickness medication, it can be considered to prevent delayed nausea after platinum-based chemotherapy. These assessments come from the German S3 guideline on complementary medicine in the treatment of oncological patients, the current top-level guideline in the AWMF register.
Mistletoe, hyperthermia and other debated methods
Mistletoe preparations are traditionally widespread in Germany. Studies on quality of life are contradictory: the guideline says mistletoe extract injected under the skin can be considered for quality of life in solid tumours (tumours of organs), but calls the data heterogeneous. Longer survival has not been proven: the data do not allow a final assessment. The decision is made with the oncologist; more on the page on mistletoe therapy.
Hyperthermia varies too. Local or regional hyperthermia is combined with radiotherapy or chemotherapy for certain tumours, with its benefit best known in soft tissue sarcomas, and is given in specialised centres. That is not the same as whole-body «warming» hyperthermia: its benefit is not confirmed, and the guideline advises using it only within studies. More on the page on hyperthermia for cancer. Any debated method needs a clear plan: what exactly is expected and when the result is assessed.
Safety: herbs, supplements and drug interactions
«Natural» does not mean «safe». St John’s wort speeds up the breakdown of many medicines and weakens several cancer drugs, such as irinotecan and imatinib. High-dose antioxidants, for example vitamins E and A, may interfere with treatment during radiotherapy. Green tea or turmeric extracts can harm the liver and change how medicines work and are broken down.
The rule: tell the oncologist about all supplements and teas and bring a list with the names as they appear on the packaging. The hospital doctor checks it, with a pharmacist if needed.
Rehabilitation and support after treatment
After active treatment, the integrative approach continues in oncological rehabilitation. Its programme includes exercise, nutritional advice, help from a psychologist and preparation for returning to work and everyday life.
Social services and support groups help too: a social worker assists with practical and social matters, including applying for rehabilitation, and in a group patients meet people who have been through the same. Cancer centres certified by the German Cancer Society must offer every patient a talk with a psycho-oncologist and a social services consultation; this is a certification requirement.
Frequently asked questions
Can integrative oncology replace chemotherapy?
No. Complementary methods do not destroy the tumour; they help patients cope with surgery, chemotherapy and radiotherapy. Experts at Germany’s Cancer Information Service advise against relying solely on alternative methods after a cancer diagnosis. If someone suggests giving up chemotherapy for «natural» treatment, discuss it with the treating oncologist and, if in doubt, get a second opinion at a certified cancer centre.
Can I take vitamins during chemotherapy?
Only after talking to your oncologist. The German guideline holds that vitamins and trace elements are given when a deficiency has been confirmed, and that levels of vitamin D, vitamin B12 and selenium are checked with a blood test. It advises against high-dose vitamin C by mouth, whether against the tumour or to ease side effects. Show the doctor every bottle you take at home.
Is exercise safe during chemotherapy?
Generally, yes. The German guideline considers physical activity safe even in advanced cancer, but the type and intensity of exercise always depend on the patient’s condition: training beyond one’s limits can cause harm. It is best to start under the guidance of an exercise therapist or physiotherapist and to agree on breaks with the oncologist.
How AlenMed arranges treatment with supportive methods
The main treatment plan is set by the partner hospital’s tumour board, where doctors of different specialties meet. At the patient’s request, AlenMed finds out in advance which supportive services are available there — psycho-oncologist, nutritional counselling, exercise therapy — and passes the patient’s list of supplements to the hospital.
An interpreter joins the talks with the psychologist and the dietitian, where every detail matters. After discharge the patient receives recommendations for the doctors at home and, if needed, AlenMed arranges rehabilitation. AlenMed’s office is in Munich; partner hospitals are all over Germany.
This material is for reference only and is not an offer. Complementary methods do not replace the main treatment; whether to use them is decided by the treating oncologist at an in-person consultation.
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