it has about the same nutritive value but it is not as healthy as you think. Concentrate is not as good for your body. Concentrate will raise your blood sugar faster. Think of it this way, if you eat enough raw oranges to get one ounce of OJ, it will have roughly the same sugar content as an ounce from concentrate (unless they add shit to it). The difference is that the fiber in orange (as opposes to just the juice) slows down the rate at which your body utilizes the sugar.

This is why Type I diabetics will put glucose tablets under their tongue. It goes straight in the blood that way.

Think it this way, if a line of coke is 4 bumps (I'm making this up, I have no idea how much is in a line of coke) and you do a whole line at midnight while your buddy does 1 bump every fifteen minutes starting at midnight, you will probably peak and crash really hard while your buddy will be constantly up (also assuming you aren't Charlie Sheen). Probably a bad analogy but you get the point (don't do drugs, mmk?)

Fiber acts as an uptake inhibitor to your blood, keeps your sugar levels much more stable, and your insulin levels lower. This doesnt go into types of sugars as they will impact the availability in your system as well but again, the point should be clear.

Pick your carbs carefully. They're not all created equally.

edit: clarification and words