In a groundbreaking revelation, a recent study, published in the journal, Cancer, has shed light on the potential benefits of a plant-based diet for individuals diagnosed with prostate cancer. The research, conducted by a team of experts lead by Dr. Stacey Loeb, suggested positive impact of plant-based diets on the quality of life for prostate cancer survivors.

The study, which included 3505 participants from the Health Professional Follow-Up Study (1986-2016), with nonmetastatic prostate cancer. Researchers utilized food-frequency questionnaires to assess dietary quality and habits. Quality-of-life scores were determined using the Expanded Prostate Cancer Index Composite, focusing on various domains such as sexual functioning, urinary irritation/obstruction, urinary incontinence, bowel functioning, and hormonal/vitality levels. 48% of patients underwent prostatectomy and 35% received radiation as primary therapy.

Results from the study revealed a compelling association between plant-based diet indices and quality of life post-diagnosis. Those adhering to a higher plant-based diet index exhibited notably better scores across several domains, including sexual function, urinary issues, and hormonal vitality. Moreover, individuals consuming healthier plant-based foods experienced improvements in sexual function (including better erections), bowel health, and hormonal vitality.

“Our findings offer hope for those looking for ways to improve their quality of life after undergoing surgery, radiation, and other common therapies for prostate cancer, which can cause significant side effects,” stated first author, Dr. Stacy Loeb.

“Adding more fruits and vegetables to their diet, while reducing meat and dairy, is a simple step that patients can take,” she further stated.

The study’s implications can extend beyond individual health benefits, offering a glimpse into the broader environmental sustainability associated with plant-based diets. By promoting the consumption of plant-based foods, not only can individuals improve their own well-being, but they can also contribute to a more sustainable future for our planet.

One of the the biggest lasting side effects after treatment of prostate cancer is worsening of sexual function. Dr. Loeb and colleagues demonstrated in their research that even basic healthy lifestyle practices can off set some of these side effects.

S Loeb et al. Plant-base diet associated with better quality of life in prostate cancer survivors. Cancer (2024). https://doi.org/10.1002/cncr.35172