It may come as no surprise to learn that, due to limited resources, many citizens of poorer countries are forced to eat whatever they can get their hands on. However, when it comes to gross foods, not all are born from utter necessity. You'd be amazed to learn what disgusting things many people eat by choice. And, while some foods can be identified as gross with a simple glance, others aren't as easily spotted until you learn about their ingredients. 10. Casu Marzu Sometimes referred to as ‘maggot cheese’, casu marzu is a Sardinian cheese made from goat’s milk. But