I bought a small jar of the ZooMed juvenile iguana food to top dress daily salads with. I did not want to use it as a total diet, but just to add variety and nutrition. As far as I can tell my little rhino won't eat it. I can hold him in my hand and he'll eat food from my other hand but never seems to eat the ZooMed food.
I tried mixing it with chopped fruit. I feed fruit every few days (3-5) on top of the greens. I can't feed it every day since the little monster seems to have quite a sweet tooth. He'll ignore everything else. I mainly use the ZooMed food as gut load for the insects I feed my other lizards.