Anything more than 900 is above normal. High levels should be dealt immediately to prevent kidney and liver conditions. You are recommended to take expert advise from a doctor to prevent chronic ailments.
Vitamin B12 is good for multiple reasons such as production of nerve cells, red blood cells and diabetes. It is naturally present in all dairy and poultry products such as chicken, eggs and milk. It prevents anemia and diabetes related complications.
It makes you happy or uplifts your mood because vitamin B12 is needed for the production of serotonin. Serotonin is a hormone that stabalises mood in people who are deficient in the hormone.
All dairy and poultry products are a good source of Vitamin B12. In addition, one can include red meat once a week to boost vitamin B 12 values