News about gross-out ingredients like pink slime and crushed up cochineal bugs (more about both later) has gotten lots of people thinking: What other surprises lurk in the food we eat? Our friends at Health.com put that question to food safety as well as food manufacturing experts, and it turns out all kinds of things go into refined and processed foods that you wouldn't willingly put in your mouth.
That's not to say it isn't safe to eat. The Food and Drug Administration and other agencies spend lots of time and energy to make sure you're not eating stuff that will kill you. But the idea that something seems "just plain wrong" often isn't part of the calculation.
From Health.com, here's a list of food ingredients that rate high in the yuck factor. Read at your own risk!