Thanks to all for the input, I have not given my bird any of it and I certainly won't now. I did speak with my vet today and she does not recommend it either. He has had a complete blood panel done and physically, he is fine. We have tried everything possible over the years, including pluck no more, didn't help. We are now using the sock buddy and he is growing feathers, but I feel like if we stop he will probably start plucking the feathers out again. But, at least he is warm, he is such a sweetie and his plucking does not change the way we feel about him. I just heard about this and thought I would ask you guys, guess I should have asked the vet first.