Infused with watermelon essence and other natural flavors. 0 calories. Hint is vegan and free of sugar, sweeteners, MSG, nut, soy, gluten and preservatives. Non GMO Certified by NSF. 0 sweeteners. By an independent bottler. Water that makes you water. drinkhint.com. (at)hint. Learn more about our BPA-free bottles at drinkhint.com. 100% recyclable bottle & cap.