This is a wonderful video by Prevention Magazine that shows you the different amounts of added sugar in whole versus processed foods.
There is sugar hidden in pretty much all processed foods – even savory foods, which are then balanced out with copious amounts of salt. It is things like this, coupled with dubious advertising, that can make controlling your diet very complicated: As a young child, raisins were advertised as “Nature’s Candy,” a healthy alternative to sweets. However, based on the amount of sugar they contain, they are no different. Pulling ourselves out of this paradigm of life-long programming via advertisements is a challenge for us all.
The only way to effectively control your sugar intake is to eat as much of a whole foods diet as possible. Skip the processed juice, and go for the apple.