Nutrition services during prostate cancer androgen deprivation therapy

Dietary interventions are effective strategies to mitigate multiple side effects from androgen deprivation therapy (ADT) in prostate cancer, however the perception of, and access to, nutrition services is relatively unknown.

A qualitative study using semistructured, audio recorded interviews was conducted in men with prostate cancer treated with ADT for ≥3 months. Interviews explored (1) side effects of ADT and drivers for dietary change, (2) accessibility, barriers, facilitators and use of nutrition services and (3) the preferences for nutrition service delivery. Data were coded using interpretative descriptive techniques of textual interview data, and systematically summarised to generate thematical patterns, using NVivo software.

Interviews were completed of 20 men with prostate cancer treated with ADT (25.5±20.1 months). Thematic analysis revealed four overarching themes-(1) the changes from ADT: men revealed that weight gain, loss of muscle and strength from ADT were daily struggles that negatively impact body image and components of masculinity reduced; (2) strategies to take control: several dietary changes were trialled and restrictive in foods and nutrients. Barriers to accessing nutrition specialists were the cost for the service and absence of a clear referral pathway; (3) importance of nutrition knowledge: demand for specialised nutrition services with knowledge in addressing side effects from ADT; (4) diverse patients need diverse nutrition support: that includes peer or partner support, and technology supported nutrition content.

Evidence-based nutrition services are an unmet need for men treated with ADT. Future work is required to develop services that can be readily available and accessible to improve prostate cancer survivorship care.