Most of my parrots for some reason prefer Zupreem Fruit Blend over some other formulated bird foods.
I don't know if it is the bright colors, the fruity taste, or what it is that they like, but it works for my birds.
That doesn't mean they don't get other nutritious bird foods and table foods for variety in their diet.
Zupreem parrot food is formulated to provide the essential nutients that my birds need, but I always mix it with several other manufacturers bird food, as well as supplement the diet with some fruit and vegetables.
Keeping my birds healthy, is what its all about!