Warning! Please consult with your doctor or healthcare provider before using juniper berries and juniper needles for health benefits! We're not certified to dispense medical advice. Keeping that in mind, here are some alleged health benefits from the juniper berries according to Balkan sources. Juniper berry juice is a great diuretic. It's recommended for patients with kidney stones and diabetes. It's also supposed to help with GI tract issues and migraines. It helps with inflammation too, and its oils are used for massaging individuals suffering from rheumatoid arthritis. Avoid consuming if you're pregnant or nursing.