African-American men who are obese had a 122% increased risk of low-grade and an 81% increased risk of high-grade prostate cancer.

FTA:

Obesity in black men substantially increases the risk of low- and high-grade prostate cancer, while obesity in white men moderately reduces the risk of low-grade cancer and only slightly increases the risk of high-grade cancer, according to the first large, prospective study to examine how race and obesity jointly affect prostate cancer risk.