Water infused with mango + grapefruit essences and other natural flavors. Water infused with mango & grapefruit essences and other natural flavors. 0 calories; 0 sweeteners. Hint is vegan and free of sugar, sweeteners, MSG, nuts, soy, gluten and preservatives. Non GMO Certified by NSF. Hint water that makes you love water. drinkhint.com. Facebook. Twitter. Instagram. (at) (at)hint. Learn more about our BPA-free bottles at drinkhint.com. 100% recyclable bottle & cap.