of the most useful components of the octopus is vitamin b12, who will start about b-12, let's michal egorichf the optic nerve, such as the eye. this is where information from the eye must go to the brain, so we see that if the myelin sheath is destroyed or it is imperfect, then information from the eye cannot get into the brain, accordingly, a person does not see, even though the eye may be completely normal, what does vitamin b-12 have to do with it, because vitamin b-12 is involved in the structure. optic nerve sheath, that is, vitamin b-12 makes it possible to work normally in the nervous system and to see normally, because vision is also a neurological phenomenon, that’s right, mikhail egorovich, but not only vitamin b-12 has octopuses before really, let’s move on to the next component, andrey petrovich, you and i need to place the podium, so, how much vitamin b12 is in octopus? in beef liver there are 13 and then 13, in herring in fish, herring in mackerel there are only three daily norms. that is, the octopus is the undisputed champion, octopuses contain approximately 82% of the daily