1.
It is needed at very small amounts 2.
Usable vitamin B12 is found only in animal products. It is absorbed in the body with the help of an intrinsic factor, secreted in the parietal cells in the stomach. 3.
The body stores of B12 can last from 2 to 5 years 4.
B12 deficiency most commonly occur - in vegetarians, who do not consume animal products.
- in the elderly
-in persons deficient in hydrochloric acid or pancreatic enzymes,which cannot produce or use the
intrinsic factor
-in smokers (cigarette and cigar smoking deplete vitamin B12)
-diabetes drugs such as Glucophage
-certain foods such as soy and spirulina5.
B12 cannot be utilized after going through pasteurization process (which causes only 10% loss of B12, but it deforms the milk proteins that aid in B12 absorption). This is the reason every person but especially vegetarians should consume raw dairy products including raw organic milk. 6.
In the early stages of B12 deficiency symptoms can be reversed by appropriate dietary changes and B12 supplements in easily absorbable form. The best forms of B12 supplement are methylcobalamin and adenosylcobalamin. 7.
It can take 6 months or more to correct the deficiency, sometimes it is not possible. 8.
At later stages of deficiency, the neurological damage is irreversible. 9.
Deficiencies can manifest as: fatigue, weakness, loss of balance, tingling or numbness in the hands and feet, depression, psychiatric disorders, pernicious anemia (which can become life threatening), dementia (possibly diagnosed as Alzheimer’s), sleep disorders, obsessive-compulsive disorder, schizophrenia, tendency to irrational anger, panic attacks, hallucinations, cancer, heart disease, impaired eyesight, etc.
10.Best sources of vitamin B12 are animal products such as organ meats (liver, kidney), meat, fish, shellfish (including clams, mussels,oysters), raw milk dairy products and eggs.