The Gold is just the new formula (not even really new) that has 24 grams per serving. But on that note does anybody know the difference between the natural 100% and the regular 100%? Also, this is what the "BEWARE GNC USERS" should be... anyone that goes to GNC never never EVER buy the distance or endurance sports drink powders that you just add water to the bottle and drink. It is probably one of the worst things I've ever tasted... besides pure CEE powder.