Bartenders turned into bar chefs when they started borrowing ingredients from restaurant kitchens to craft fresh, culinary-focused cocktails. Now they are exploring ways to make drinks healthier, using vegetables such as carrots, cucumbers and beet juice, and vitamin-rich fresh fruits such as berries and mangoes, to give drinks a health halo. Also trending as a mixer with alcohol is tea, another ingredient that attracts health-conscious drinkers.