It is very hard to walk through, or weed through all the information about diets. And when you really dig in — most of the information we do have is based on studies with chickens!!!
There are studies, though that show pellets are hard on parrotlets’ kidneys. That is the issue with them. One thing some people on this forum do is always serve them wet. However I haven’t seen proof that resolves the issue though I am sure it helps.
I know someone who has always fed theirs Roudy bush pellets plus the Goldenfeast Aus. Blend. Their parrotlet is older than mine and has always been in great health. They didn’t worry about the pellet/kidney issue. Neither does Skittles’ breeder - they feed only Rbush.
Here is a
little something I wrote up about pellet foods. That will explain my personal feelings on the subject. I lean more toward raw,Whole Foods for my flock (autocorrect keeps capitalizing Whole Foods lol) ... just like I do for my family. To me, the lest processing the better. And the nutrients are more available in their unadulterated form.
There’s a FB group Avian Raw Whole Food Nutrition if you want to learn more. But if you want to feed pellets, that’s fine too. They are convenient and easy, and most of these companies have veterinarians and do testing and so on.
It’s not like they’re poison.