Because it is not cooked, all vitamins, enzyms and nutrients are intact.
When you cook a vegetable, you tend to lose a big fraction of its nutrients content.
Now, what happens when you eat food with poor nutritious value like junk food?
Your body keeps sending hunger signals until it gets what it needs.
If the food you decide to eat is highly processed and has lost most of its value, your body will only get a small fraction of the nutrients it needs with the same volume of food.
Result? You will eat much more to get the nutrients your body needs.
When confronted with a choice between raw and cooked, always chose for raw!
To your unlimited health!