While there's no definitive scientific link between lemon juice and fertility, it has been noted for its high in Vitamin C content, about 18.6 mg per fluid ounce, which supports overall health and can assist in boosting the immune system. According to the National Institutes of Health, adult men should aim for 90 mg of Vitamin C per day, and adult women should aim for 75 mg per day. Additionally, its antioxidant properties can potentially improve overall health, which could indirectly influence fertility. It's always recommended to consult a healthcare professional for personalized advice.