Cranberry Juice Benefits Female Sexually is rich in antioxidants, which can have a general anti-inflammatory effect and contribute to overall health. While it may not have an immediate noticeable impact on sexual health or energy levels, antioxidants can help reduce oxidative stress and inflammation over time, promoting overall well-being. Cranberry juice may take a few days to weeks to show noticeable effects in preventing UTIs or supporting general urinary health. However, it is not a quick fix for active infections, and antibiotics may be necessary for effective treatment.