42-Day Juice Therapy: An Overview of the Breuss Cancer Cure
The 42-Day Juice Therapy, often called the Breuss Cancer Cure, is a controversial alternative wellness protocol created by Rudolf Breuss, an Austrian naturopath. Breuss claimed that cancer and certain severe illnesses could not continue to develop without solid food. Based on this idea, he promoted a regimen of specific vegetable juices and herbal teas designed to nourish the body while allegedly depriving cancer cells of what they need.
What Is the Breuss 42-Day Juice Therapy?
At the center of this method is a 42-day fasting program that allows only selected juices and herbal infusions.
Main principles of the therapy
- A strict 42-day fast using only raw vegetable juice and designated herbal teas
- No solid foods during the full program
- Avoidance of:
- Sugar
- Dairy products
- Processed foods
The Breuss Juice Recipe
The daily juice intake is typically limited to up to 500 ml per day.

Core ingredients in the Breuss juice blend
- Beetroot – the main component, valued for its antioxidant properties
- Carrot
- Celery root
- Potato – sometimes included, especially in cases associated with liver concerns
- Black radish
These vegetables are freshly juiced and taken in small sips throughout the day, rather than consumed all at once. According to the method, the juice should be drunk only when hunger appears.
Herbal Teas Used in the Breuss Protocol
Breuss also recommended several herbal teas as part of the program.
Commonly suggested teas
- Sage tea – considered the primary tea in the regimen and often associated with immune and inflammation support
- Kidney tea blend – intended to support kidney cleansing
- Cranesbill (Geranium robertianum) – traditionally believed to aid detoxification and support blood health
- St. John’s Wort
- Peppermint
- Lemon balm
These herbs are generally used for their calming effects and digestive support.
What Rudolf Breuss Believed
Breuss based his therapy on several key beliefs:
- Cancer cells depend on solid food, especially protein
- A juice-only fast could supposedly deny cancer cells their fuel while allowing healthy cells to continue functioning
- The body could then cleanse itself and activate its own healing capacity
Important Medical Considerations
It is essential to understand that the Breuss diet remains highly controversial.
- It is not an approved medical treatment for cancer
- There is no scientific evidence proving that the Breuss therapy can cure cancer
- Going 42 days without solid food may be dangerous, particularly for:
- People who are already weak
- Older adults
- Patients receiving conventional cancer treatment
Before Trying Breuss Juice Therapy
If you are thinking about following the Breuss juice therapy, take a cautious approach.
Recommended precautions
- Speak with your oncologist or healthcare provider first
- Treat it only as a complementary practice, never as a substitute for evidence-based cancer care
- If a full 42-day fast is unsafe, consider a modified version under medical supervision
Final Thoughts
The 42-day Breuss juice therapy continues to attract attention in the world of alternative cancer diets, mainly because of its strict fasting model and focus on raw vegetable juice and herbal teas. However, despite its popularity in some natural health circles, it should be approached carefully. Anyone interested in the Breuss cancer cure should prioritize professional medical advice and rely on scientifically supported treatment options first.


