Why does God hate Bacon?

[Jackalope]

But then why does God prohibit cheeseburgers? Leviticus warns against eating meat and dairy products together. That's why Orthodox Jews today use separate sets of dishes.

Perhaps one of their evil pagan neighbors customarily ate meat and dairy together? Dunno. I suspect some prohibitions had some basis in rationality, and others not so much.

But I've never seen a good reason against eating shellfish.

Paralytic shellfish poisoning (a.k.a. "Red Tide").

Also - shellfish spoils VERY quickly and can make you wish you were dead before it spoils to the point where you wouldn't at least consider eating it if you were starving.