Men who eat a diet low in fat and red meat but high in vegetables and lean protein and who drink alcohol in moderation may not just be doing their hearts a favor. A new study shows that such a heart-healthy diet may also be good for the prostate. Specifically, such a diet significantly decreases the risk of symptomatic benign prostatic hyperplasia, or BPH. The bothersome condition is associated with frequent and painful urination that affects about half of all men by the time they reach 50 and nearly all men by age 70.