Maintaining a healthy weight is an important factor in preventing prostate issues such as enlargement of the prostate gland, known as BPH (benign prostatic hypertrophy). Studies have shown that excessive weight can increase hormonal imbalances and possibly lead to prostate problems. The National Cancer Institute believes prostate cancer may be linked to these imbalances.
A recent study from Duke University shows a link between obesity and aggressive prostate cancer. The study found that there was a higher mortality rate for obese men, as well as a higher incidence of complications from treatments such as androgen-deprivation therapy. They also noted that weight loss in animals did slow the growth of prostate cancer cells, though this has not been verified to also be the case for humans.