What a laugh. the "paste chemicals" are an inert carrier. It's as edible to humans as it is to animals.
I am sure there are numerous instances of differing views by users, providers and doctors.
Ie: Dr. Shane Speights with The New York Institute of Technology College of Osteopathic Medicine says the paste can cause several problems. “Let’s say it was manufactured for a large horse, but a human takes it, it can create low blood pressure, rapid heart rates, seizures, there are even episodes where you can see layers of your skin fall off,” said Speights. “It can damage the liver, and there’s vision loss that can be associated.”