Is ZuPreem FruitBlend safe despite the sugar and dye concerns?

High-trust r/parrots discussion is split: many owners call it the only pellet their picky birds will eat, while others flag added sugar and artificial coloring and point to natural alternatives. The alarming 'it killed my bird' Amazon anecdotes that circulate in these threads are unverified individual claims, not findings from any testing source, and should be treated cautiously.