I would never give mine any........whether they claim they are improved or not.......I am just a paranoid freak
Back in the day, when my toy poodle was younger.......she used to love them. People used to shower her with greenies and I didnt know any better. It wasn't until she had a bowel obstruction due to one
She had undigested particles in there and I learned my lesson. Then, they came out with an improved version but I still refuse to use them. Dogs have actually died due to them