Sprite belongs to carbonated drinks, and carbonated drinks are taboo in fitness and weight loss:

The reason is that too much sugar in the drink is absorbed by the human body, which increases the calories. Long-term drinking can lead to obesity and addiction.

You can't drink it at all. If you drink one cup every day, you will gain ten pounds in January. Since you want to lose weight, you must stick to it.

If you really can't help drinking carbonated drinks, you can use skim milk, or yogurt and juice instead, but not too much.