The juice from a single lime will add 11 calories to your water and 15% of your vitamin C needs. Lime juice also has 51 milligrams of potassium and 3.5 milligrams of magnesium. While that’s not a lot, those electrolytes can help keep your fluid levels balanced from a high-sodium diet. Adding more potassium to your diet can help your body get rid of excess sodium and help your blood vessels relax. Magnesium alone might not lower your blood pressure, but it works well with potassium to reduce hypertension.
If you have high blood pressure, you might know a little something about the angiotensin-converting enzyme (ACE) that’s responsible for narrowing your blood vessels. People with high blood pressure may take medications that are ACE inhibitors. A 2015 article in Comparative Clinical Pathology found that lime juice can reduce ACE activity while also showing antioxidant properties.
