A Prospective Randomized Double-blind Trial Of Grape Juice Antioxidants In Men With Lower Urinary Tract Symptoms

Effect None
Values Change ICSmale. Mean + SD. Grape: 1.7 (2.8). Placebo: 1.7 (4.1)
Trial Design Randomized trial
Trial Length 1-6 months
Number of Subjects 113
Sex Male
Age Range 45-64, 65+
Notes for this study:
In a randomized, double-blind, controlled trial,113 participants with lower urinary tract symptoms were allocated to take 240 mg (8 ounces) of concord grape juice or a calorically matched control drink daily for 3 months.

The primary outcome was the change in lower urinary tract symptoms on the Male International Continence Symptom, and both groups saw some improvement. Still, there was no notable difference between them. There was also no notable difference in erectile function.
Funding issues for this study:
Welch’s Food, Inc provided the juice and it's unclear if they had any influence on the trial.