If you drink soda, commercial fruit juices and other sweet drinks (like Gatorade) and energy drinks, and you want to improve your health, loose weight and generally feel good, than:
Don’t drink your calories!
How to do that? Switch to water, unsweetened mineral water and herbal teas. They are best for your thirst and health.
The only time you should drink fruit juice is when you freshly squeeze it from real fruit, like oranges, grapefruit, pineapple and other fruits and vegetables.