My bird loves them, too. I give her one a day as a treat. They can also be used for medications, should your bird ever become ill. If you get to the point where having to catch your bird to force a syringe into it gets very difficult, you can split the Nutriberry in half and put the medication on it. Let it dry for an hour, remove the pellets and put in the berry. That way you will know if the entire (half) berry was consumed.
I am now working with my birds on taking a syringe of handfeeding formula so that if either is ever sick again, it will hopefully take the medication easier.
And just in case, I'm trying to get my amazon to also eat Nutriberries.