Is it okay for vegetarians to eat jellyfish? Dean Burnett

Vegetarianism may seem straightforward, but when you get down to the scientific details, it becomes less clear. With advancements in food technology, it's likely to get even more confusing

Would you eat a jellyfish? The most likely answer would be "no; they look disgusting. And they're probably poisonous. Shall I wash it down with a nice glass of chilled urine?" But, inevitably, some people do eat them. They might even enjoy them, the maniacs.

But Cnidaria cookery methods aside, consider this; would it be OK for a vegetarian to eat jellyfish? If not, why not?