 For this reason, the "gid ha-nasheh" is not eaten at all but entirely avoided.Rabbi Abraham Isaac Kook explained that the prohibition of eating "gid ha-nasheh" demonstrates that, while we may need to slaughter animals for our physical needs, we do not seek to subjugate others, whether man or beast.For this reason, we make great efforts to avoid eating the sciatic nerve - a nerve that allows the body to stand upright.