I thought it had more to do with food borne disease and lack of refrigeration.
(Though I’ve seen the tales about ‘long pig’ from other parts of the world.)
“An animal must possess two specific characteristics to be considered kosher: it must have completely split hooves and it must chew its cud.”
(there are four I believe)
Fowl don’t count, nor do fish, those are okay — but shellfish are off limits.
Also, a dish made of mingled milk and meat are a no-no. Hence no pizza, but that wasn’t a problem at the time. One of the ancient texts from among the neighbors of the Israelites included a sort of recipe for boiling a calf in the milk (probably colostrum) of its mother, that was right out.
There’s more than 300 food laws, no wonder Chinese food (other than shrimp fried rice and the like) is so popular in Hollywood. 😎