I recently learned that, per the general understanding of the Seven Noahide Laws, Gentiles cannot eat flesh torn from a live animal. How would this look in practice? What meals would violate this law? Would oysters be an example, perhaps? If so, they're prohibited even to Gentiles. What about lobsters, which are cooked alive? (I assume this is different but would like to make sure.)

What meals commonly eaten in the English-speaking world are prohibited for Gentiles?