Quest Vanilla Latte flavor Iced Coffee is a smooth operator of flavor to help you supercharge your day. Take a break from your ordinary vanilla latte and make it an extraordinary vanilla latte flavor from Quest - one that’s delightfully delicious and has 1g of sugar. Toss one in your backpack, one in your laptop bag - and a few more in the car. And don’t forget to stock up on Quest Protein Bars, irresistible Quest Frosted Cookies and everybody’s favorite Quest Protein Chips. *See Nutrition Facts for Calories Content. Low Sugar: 1g Sugar, Including 0g Added Sugars per serving. Not a low-calorie food. †Caffeine content comparable to two standard 8 fl. oz cups of coffee.