After brewing green tea, add a squeeze of lemon juice. Lemons and other vitamin C-rich foods can increase the amount of beneficial polyphenols your body absorbs from the tea.
Stirring in a little honey can increase absorption even more, but be careful not to add too much as honey can add a significant amount of calories; each teaspoon of honey has 21 calories.
Increasing your vitamin C intake may also have other benefits for weight loss. People who consume more vitamin C tend to burn more body fat and visceral fat during exercise.
If you don't like putting lemon in your tea (drinking lemon tea), there are still many other ways to use lemon juice. For example, squeeze a slice or two of lemon over fish or seafood to add flavor to the dish, add lemon juice to water, or use it as a salad dressing with a little olive oil and mustard.