[hollerith]

There are also toxins to worry about. Many toxins bioaccumulate.

Wild animals spend most of their waking hours looking for and chewing food (and humans labored under the same constraint till they invented cooking); even when they can tell there is something wrong with some food, they usually cannot afford to reject it.

Toxins are present in a lot of farmed 100%-grass-fed meat, too. I stick mostly with 100%-grass-fed lamb raised in New Zealand or Australia and won't eat grass-fed buffalo anymore even if it were free.