Zevia® Zero Calorie Soda Dr. Zeiva. Naturally Flavored. No Sugar. No Artificial Sweeteners. Contains Caffeine. 12 FL OZ (355 ml). Caffeine: 42 mg/ 12 fl oz. Vegan. Certified Gluten-Free. Non GMO Project Verified. nongmoproject.org. Please recycle. 1.855.GO.ZEVIA (1.855.469.3842). www.zevia.com.