I, previously in my life worked as a cooker in KFC.
You know those big chicken-full buckets?
I inserted little drips of pee and pubic hair in them :)
You aren't the only one...
What anyone consumes can be roughly measured these days, having me question why someone'd eat pet food when they could have the same benefits from human food by matching up the nutrient facts of each. The food made for other species are made with their diets in mind, which is why dogs and cats shouldn't eat eachother's food. I'd figure a similar principle would apply to people.
Stuff is fine. People blend the stuff up and use it to raise little baby monkeys.
In fact, I am so convinced that food for animals is healthier than shit they shovel into the mouths of humans, I do in fact eat food from the pet store every now and then.
Try to stay regular people.