# Alternative treatments for gastric cancer
Traditional Chinese herbal formulas (TCM)
Multiple traditional Chinese formulas have been investigated for their potential effectiveness against gastric cancer. Examples include Zuo Jin Wan, Renqing Mangjue and formulas containing components such as Paris polyphylla (Rhizoma Paridis) and Margarite thistle. These studies are based on laboratory research in which certain plant substances caused changes in cancer cells.
ResearchediPositive results in clinical studies, not yet standard treatment
The most studied mechanism concerns how certain ingredients might enhance the efficacy of chemotherapy or reduce side effects. Under laboratory conditions, some formulas have provided evidence that they can reduce resistance to certain chemotherapeutic agents.
However, these studies have been performed almost exclusively in vitro (in petri dishes) or in animal models. To date, no large, well-controlled clinical trials in patients have been published demonstrating that these formulas actually help with gastric cancer. Their use alongside chemotherapy always requires consultation with your healthcare provider, as interactions may occur.
Curcumin (turmeric root)
Curcumine, the active ingredient in turmeric, has been investigated in laboratory settings for its effects against gastric cancer cells. Theoretical analyses suggest that it could influence certain cell molecules.
ResearchediPositive results in clinical studies, not yet standard treatment
Laboratory studies show that curcumin can inhibit cancer cell growth under certain conditions. Whether this also occurs in the human body, and at what concentration, has not been demonstrated. Curcumin supplements have no proven effectiveness against gastric cancer in humans. Furthermore, curcumin may interact with medications, especially at high doses.
Acupuncture and moxibustion
Acupuncture is used in some centres as a supportive measure, particularly for symptom management (nausea, pain). A 2026 publication described 'fire needle therapy' combined with herbal therapy for gastric conditions in animal models.
ResearchediPositive results in clinical studies, not yet standard treatment
There is evidence that acupuncture may help with certain cancer-related symptoms (nausea, pain management), but scientific evidence specific to gastric cancer is limited. It can be used as a complementary intervention for symptom relief, not as a replacement for standard treatment. Acupuncture is generally safe when performed by a trained practitioner.
Nutrition and dietary supplements
Many patients seek dietary modifications or supplements. Some published studies examine how nutrition can affect gastric flora (bacteria in the stomach) and inflammation, which may be relevant long-term for risks, but not for active cancer treatment.
ResearchediPositive results in clinical studies, not yet standard treatment
Although healthy nutrition is important for everyone, there are no nutritional supplements with proven effectiveness against active gastric cancer. Some supplements may cause interactions with chemotherapy or other medications. Always consult your dietitian or oncology team before starting supplements.
Traditional herbal preparations (Sarcandra glabra, Atractylodes)
These plants are traditionally used for digestive problems. Recent studies have examined their botanical composition and effects on inflammatory markers in laboratory models.
ResearchediPositive results in clinical studies, not yet standard treatment
Although some of these herbs have been used historically and show biochemical activity in laboratories, clear evidence of effectiveness against gastric cancer in humans is lacking. They may play a role in symptom management (for example, supporting intestinal flora) but not as a replacement for oncological treatment.
Naturopathic approaches
These are integrated approaches that combine nutrition, supplements, lifestyle and sometimes herbs. A 2026 publication described two case reports of naturopathic supplementation in cancer patients (here with skin cancer).
UnproveniNo scientific evidence that it works
Case reports (stories of individual patients) do not provide evidence of efficacy. Naturopathic approaches may work complementarily to support wellbeing and symptom management, but there is no scientific evidence that they treat gastric cancer. Natural products do not necessarily have to be safer than pharmaceutical agents – many can be toxic or interact with other substances.
Microbiome-directed interventions
Recent research focuses on the microbiome (the bacterial flora in the stomach and intestines) as a factor in cancer development and progression. This opens potential entry points for dietary modifications or bacteriophages in the future.
ExperimentaliOngoing in study setting, outcome still unknown
This is a very active field of research. It is clear that gastric flora is involved in cancer risk and precursor diseases such as gastritis, but therapeutic interventions that modify this microbiome have not yet been proven effective for treatment. This is currently scientific territory, not a clinical option.
Why are these treatments not standard?
Most alternative approaches have been studied in laboratories under very controlled conditions. This is important fundamental research, but major differences exist between:
- **In vitro** (in petri dish): laboratory environment with high concentrations of substances
- **In vivo** (in animal model): still not the same as the human body
- **Clinical efficacy**: real effect in patients, measured in large, randomized trials
For gastric cancer, only chemotherapy, radiotherapy and surgery have been tested in large clinical trials and have demonstrated their efficacy.
Important Warnings
- Many alternative agents can **cause interactions** with chemotherapy, making it less effective or worsening side effects.
- **Delay of standard treatment** (surgery, chemo) in favour of alternative therapy demonstrably worsens the outlook.
- Unregulated herbal ingredients can be contaminated with metals or other harmful substances.
- A positive laboratory result does not mean something is effective in humans.
Summary
Most alternative approaches for gastric cancer are interesting from a scientific perspective, but have no proven efficacy against the disease itself. Some can be used additionally for symptom management (pain, nausea, general wellbeing) provided they are well coordinated with your treatment team. Standard treatment (surgery, chemotherapy, sometimes radiation) remains the only option with demonstrated efficacy.
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_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._