On the other hand, a latte has 300 calories, while a large Starbucks Flat White has 290 calories. A surprising quantity of calories can be found in liquids that are consumed at a high temperature, such as coffee and other hot beverages. In the event that your goal is to reduce your body fat percentage, you can reduce your calorie intake by 250 calories by making a straightforward alternative, such as ordering a white Americano instead of a regular coffee.