'Healthy fats boost prostate survival rate'

By the Editorial Team · Thursday, September 3, 2026

Researchers at Harvard found that men with prostate cancer who increased their intake of healthy fats from sources like avocados and nuts had a 20% lower risk of death from all causes compared to those consuming more saturated fats. This suggests that dietary changes focusing on plant-based fats can significantly improve overall survival by reducing risks of cardiovascular disease and other cancers among prostate cancer survivors.

A diet rich in healthy fats such as avocados and olive oil may improve survival rates for men diagnosed with prostate cancer, according to a new study from researchers at Harvard T.H. Chan School of Public Health. The findings suggest that dietary changes following a prostate cancer diagnosis could play a significant role in reducing mortality risk.

The study tracked the diets and health outcomes of 5,000 men with non-metastatic prostate cancer over an average of 13 years. Researchers observed that participants who consumed higher amounts of healthy fats—primarily plant-based monounsaturated fats found in foods like nuts and avocados—had a notably lower likelihood of death from all causes, including heart disease and other cancers.

Specifically, the study found that replacing approximately 150 calories of saturated fats daily—equivalent to one sausage—with the same caloric amount of healthy fats correlated with a 20 percent reduction in overall mortality risk. Conversely, men who consumed higher quantities of unhealthy fats, such as those found in bacon or chocolate, faced a 24 percent greater risk of death compared to those who favored plant-based fats.

Importantly, the decreased mortality rate appeared to be driven largely by a decline in cardiovascular disease and other cancer-related deaths rather than a direct impact on prostate cancer progression. The researchers emphasized that this highlights the need to consider overall health management alongside cancer treatment.

“Our findings suggest that diet after diagnosis may be one modifiable component of survivorship care, broadening the focus beyond control of the original tumour,” the study authors noted. They further pointed out that protecting cardiovascular and metabolic health is critical for prostate cancer patients, particularly since some treatment regimens can adversely affect these systems.

This research underlines a growing understanding that lifestyle factors play a vital role in long-term outcomes for cancer survivors. Incorporating healthy fats into post-diagnosis dietary plans could represent a relatively simple intervention with substantial benefits for longevity and quality of life among prostate cancer patients.

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