Not all gold glitter

Appearance can sometimes cheat you.

For example, orange peel contains more than four times as much fiber as the fruit inside, and more tangeretin and nobiletin—flavonoids with anticancer, antidiabetic and anti-inflammatory properties.

When you only drink the juice of fruits, you are not getting the appetite satisfying effect of the fiber in the fruit. 

Also, the fiber in whole fruit helps to slow the blood sugar response when eating whole fruit compared to fruit juice.

On other hand, eating whole fruits including all of the fiber helps you maintain a healthy balanced diet and high nutrient density.