(HealthDay News) – For men with non-metastatic prostate cancer, the risks of lethal prostate cancer and all-cause mortality are significantly reduced with replacement of carbohydrates by vegetable fats, according to a study published online June 10 in JAMA Internal Medicine.
Erin L. Richman, ScD, from the University of California in San Francisco, and colleagues conducted a prospective study involving 4,577 men with non-metastatic prostate cancer to examine the correlation between post-diagnostic fat intake and outcomes (lethal prostate cancer and all-cause mortality).
During a median follow-up of 8.4 years, the researchers identified 315 lethal cancer events (distant metastases or prostate cancer-specific death) and 1,064 deaths. The risks of lethal prostate cancer and all-cause mortality were significantly reduced with replacement of 10% of energy intake from carbohydrate with vegetable fat (hazard ratios, 0.71 and 0.74, respectively). No association was seen with other fats and lethal prostate cancer. Higher all-cause mortality was seen with an increase in saturated and trans fats after diagnosis (replacement of 5% and 1% of energy from carbohydrates, respectively), with hazard ratios of 1.3 and 1.25, respectively.
“In conclusion, among men with non-metastatic prostate cancer, replacing carbohydrates and animal fat with vegetable fat may reduce the risk of all-cause mortality,” the authors write. “The potential benefit of vegetable fat consumption for prostate cancer-specific outcomes merits further research.”