Metabolife Ultra Weightloss Aid is an over-the-counter dietary supplement that contains various ingredients, including herbs, vitamins, and caffeine. Supplements can have potential interactions with medications and can affect your body's response to surgery and anesthesia. Therefore, it's crucial to inform your healthcare provider about any supplements or medications you are taking, including Metabolife Ultra Weightloss Aid. Caffeine, which is present in Metabolife Ultra, can affect blood pressure, heart rate, and blood flow. Your surgeon will want to ensure that your cardiovascular health is optimal before undergoing surgery, and they may advise against the use of supplements that contain stimulants like caffeine. To ensure your safety and achieve the best surgical outcomes, it's important to follow your surgeon's instructions and provide them with accurate information about any medications, supplements, or herbal remedies you are taking. They will be able to provide you with specific guidance based on your unique medical history and the planned procedure. Ultimately, the decision on whether to take Metabolife Ultra Weightloss Aid or any other supplement before surgery should be made in consultation with your healthcare provider or surgeon, who can consider your individual circumstances and advise you accordingly. I hope this helps, best of luck !