What is Cranberry Juice Good for Sexually can vary depending on what you're using it for. If you're consuming it for urinary tract health, some people may notice benefits within a few hours to a couple of days, especially if they drink it regularly. However, cranberry juice is not a guaranteed remedy for urinary tract infections (UTIs) and should not replace medical treatment. For general health benefits, incorporating cranberry juice into your diet can contribute to overall well-being over time, but specific effects may not be immediate.