We say that women cannot eat this food, its religion. We don't question it. They study the food and find it is toxic, causes abortions or fetal development issues, but the meaning was lost, its now our religion.
I thought pork was just full of worms. I heard in the middle east it was just not as productive as chickens, which would not only give meat but eggs, they used to eat it there.
If you think pigs are bad with the environment, watch until you see the environmental damage that goats do. They literally graze everything to the ground. They fatally wound most trees. They leave behind desert.
Don't drink alcohol because... well, luck favors the bold...