Like humans, birds need the right amount of fiber in their diet to maintain a healthy digestive system and overall health. Wholesome grains such as brown rice, wheat, etc. in the parrot food supply the required amount of fiber to maintain a healthy gut in birds. Steamed fruits and vegetables are also a good source of fiber for your parrot. Additionally, you will also find that fortified foods contain the right proportion of fiber in them. If your pet parrot loves eating fresh vegetables and fruits, you do not have to worry much about the fiber intake as fruits and veggies will take care of this.