Context: Nearly 40% of cancers could be prevented through effective primary prevention (healthy diet, physical activity, stress management, avoidance of tobacco and alcohol). Furthermore, about 70% of malignant tumors can be linked to environmental factors, particularly in breast cancers. This data aligns with the One Health approach, linking human, animal and environmental health. Discussion: Integrative oncology combines conventional cancer treatments with validated complementary therapies, aiming to improve quality of life, reduce side effects and enhance treatment compliance. In Europe, homeopathy plays a central role within this framework.Randomized and observational studies (Frass 2015, 2020) have shown significant benefits in terms of quality of life, decreased medication use and even survival rates, with no major adverse effects or drug interactions reported. Homeopathy is also an environmentally friendly therapy. Arnica montana, the most frequently prescribed homeopathic medicine, illustrates the link between clinical efficacy and ecological sustainability, both through positive randomized trials and responsible harvesting practices. In theory, a single flower could provide enough Arnica montana 30CH for the entire world. The positive impact also extends to healthcare systems (less iatrogenesis, reduced costs), to society (better reintegration and psychological support) and to healthcare professionals (burnout prevention, renewed sense of what care entails). Conclusion: Within integrative oncology, homeopathy addresses a triple challenge: medical, environmental and societal. It promotes sustainable health that goes beyond medical cure to encompass quality of life, prevention of sequelae and preservation of ecosystems. International clinical experience, randomized trials and positive patient feedback support its growing institutional recognition. Homeopathy thus emerges as one of the promising pathways towards a more human, ecological and responsible medicine. Key words: Arnica montana, Homeopathy, Integrative oncology, One Health, Prevention
Bagot et al. (Tue,) studied this question.