This awful food almost killed my cat

About a year ago, all our cats except two of them turned there noses up to this cat food, one of the two cats seemed to be okay-ish, but she threw up the food after we gave it to her, the other one was a kitten, she got very ill, and almost died, since this food was a new brand we decided to stop feeding it to them once the bag was almost empty, we sent a sample in for testing, it came back with high levels of vitamins b, which is harmful to cats. Don't buy anything from ever pet, it is harmful to your pets, even their cat litter is horrible.