As of 2015, there are no reliable sources indicating specific foods increase the risk of an enlarged prostate; however, studies show that diets high in protein and certain types of polyunsaturated fat may increase risk, according to NBC News. A higher risk of developing benign prostatic hyperplasia, also referred to as BPH, is associated with excess calorie consumption, too much body fat and insulin resistance, indicating that a poor diet is an indirect cause of the condition.
Studies indicate that eating more fruit can reduce the risk of developing BPH due to the variety of vitamins and antioxidants they provide, states NBC News. Lycopene may also slow the growth of prostate cells. Lycopene is an antioxidant largely found in cooked tomatoes.
Studies indicate there may be a correlation between prostate health and green tea, soy beverages and saw palmetto supplements, according to Johns Hopkins Medicine. Other recommendations for patients with BPH include reducing alcohol and caffeine consumption and maintaining lower levels of zinc, margarine and butter in the diet.
Based on current studies, it is recommended to follow the guidelines of the American Cancer Institute regarding a well-balanced diet, notes NBC News. The best ways to reduce risk include eating a healthy plant-based diet that emphasizes vegetables, fruits, beans and whole grains, as well as getting regular exercise and maintaining a healthy weight.