Improve Energy Expenditure
Like green tea and black tea, oolong tea contains caffeine. When you drink this tea to lose weight, the consumed caffeine would increase fat oxidation and energy expenditure for a few hours. Indeed, energy expenditure might increase by around 3 to 8 percent after consuming caffeine. Therefore, you can be more focused and active. This helps the body move more and burn more fat. [6]
No Extra Calories
Oolong tea is a great drink for losing weight because it contains almost no extra calories. In simple words, calories are the energy units. When the number of calories that you take in exceeds that of consumption, you will lose weight. And when the number of calories that you take in is below that of consumption, you will gain weight. Unless you add artificial sweeteners, honey, sugar, and other high-calorie ingredients, oolong tea is a great option for weight loss. [7]