Oct 16, 2026
This report by the World Cancer Research Fund International explores how diet, nutrition, physical activity, and body weight impact survival, recurrence, and quality of life for individuals living with and beyond breast cancer. Drawing from comprehensive systematic reviews conducted by Imperial College London, an independent expert panel evaluates the available evidence to provide practical guidance and recommendations for patients, caregivers, and healthcare professionals. The publication outlines the current global prevalence of breast cancer, details the methodology used to grade scientific evidence, and highlights specific lifestyle factors such as physical activity, dietary fibre, soy intake, vitamin D, and body weight. Furthermore, it identifies significant research gaps and future priorities, emphasizing the need for robust clinical trials and more diverse study populations to strengthen future survivorship guidelines.
Key points in the document:
1 The panel recommends that breast cancer survivors be physically active, emphasizing that activity should be increased under the supervision of healthcare professionals
2 The panel suggests that survivors consider increasing dietary fibre intake gradually, focusing on natural food sources such as vegetables, fruits, whole grains, pulses, nuts, and seeds
3 Higher intake of soy foods (such as tofu, tempeh, edamame, and soy beverages) was associated with reduced all-cause mortality, breast cancer-specific mortality, and recurrence.
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