FROM THIS WEEK'S TORAH PORTION - VAYYISHLACH:

"That is why the children of Yisra’el to this day do not eat the sinew of the hip, which is on the socket of the thigh, because He touched the socket of the thigh of Ya’aqov, in the sinew of the hip."

Rabbinical Judaism states that this is a commandment, and that kosher meat cannot contain it. However, no specific Torah command was given by YHWH saying this, and it is not among the forbidden meats listed in the Torah.

So, while it is not a literal commandment, the question still remains, should we eat it, or not? As it says, "the children of Yisra’el to this day do not eat the sinew of the hip."