The octopus is killed just before serving and immediately served sliced into smaller pieces. Since the nerves still have activity after death, the arms continue to move on the plate when eaten. Two-thirds of the nerves of the San-nakji are located in the arms so they are capable of coordinating complex movements even after being severed from the brain. If not properly sliced, the octopus suction cups can stick to the inside of the person’s throat. On average, six deaths per year occur due to suffocation. Eating live octopus is rumored to be good for your blood sugar levels and contains high levels of energizing taurine.