Nutrition and lifestyle interventions are proving effective for men with prostate cancer undergoing radiotherapy, according to a 2026 systematic review.
Radiotherapy affects about 30% of men with prostate cancer, often causing weight gain, fatigue, and reduced quality of life.
The study analyzed 19 trials and found that personalized nutrition plans can help reduce weight gain and gastrointestinal issues.
Plant-based, low-saturated fat diets combined with exercise and stress management showed clinical benefits.
Restrictive diets eased bowel symptoms but lowered energy intake. Tomato juice supplements raised lycopene levels but lacked consistent clinical impact.
Across all studies, dietary changes led to improved triglycerides, HDL, and HbA1c levels.
Comprehensive lifestyle programs also helped reduce psychological distress and urinary symptoms.
Researchers recommend more rigorous, standardized trials focused specifically on radiotherapy patients.