What is it?

Vitamin B12 is a vitamin. It can be found in foods such as meat, fish, and dairy products. It can also be made in a laboratory.

Vitamin B12 is used for treating and preventing vitamin B12 deficiency, a condition in which vitamin B12 levels in the blood are too low. It is also used to treat pernicious anemia, a serious type of anemia that is due to vitamin B12 deficiency and is found mostly in older people. For this purpose, people use either a supplement that is taken by mouth or a gel that is applied inside the nose.

Vitamin B12 is also used for memory loss; Alzheimer's disease; boosting mood, energy, concentration and the immune system; and slowing aging. It is also used for heart disease, lowering high homocysteine levels (which may contribute to heart disease), male infertility, diabetes, sleep disorders, depression, mental disorders, weak bones (osteoporosis), swollen tendons, AIDS, inflammatory bowel disease, asthma, allergies, a skin disease called vitiligo, preventing cervical and other cancers, and skin infections.

Some people use vitamin B12 for amyotrophic lateral sclerosis (Lou Gehrig's disease), multiple sclerosis, Lyme disease and gum disease. It is also used for ringing in the ears, bleeding, liver and kidney disease, and for protection against the poisons and allergens in tobacco smoke.

Vitamin B12 is applied to the skin either alone or in combination with avocado oil for psoriasis and eczema.

Vitamin B12 is frequently used in combination with other B vitamins in various vitamin B complex products.

SISU B12

There are many reasons your body might not be getting enough Vitamin B12. Diet and medication are two common reasons. Do you take Metformin? Did you know that taking metformin can cause your body to malabsorb Vitamin B12 leaving you deficient? The main symptoms of B12 deficiency are weakness and tiredness. More severe deficiencies could result in numbness or tingling in the hands and feet. Foods such as eggs, beef and shellfish are all good sources of Vitamin B12.

If you are taking Metformin or do not maintain a balanced diet or are a vegan vegetarian, you might consider taking the SISU B12 supplement we recommend.

Recommended Dose

For vitamin B12 deficiency or pernicious anemia, cyanocobalamin doses of 300-10,000 mcg daily have been used . However, some evidence suggests that the most effective oral dose is between 647-1032 mcg/day.