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Vitamin B12

B12 Supplementation

What is Vitamin B12?

Vitamin B12 is a water soluble vitamin that is found naturally in foods. It is also available in over the counter supplements and via prescription.

What are some of the benefits of B12?

Some of the benefits of B12 include proper blood function, proper neurological function and is integral in fat and protein metabolism.

What are some symptoms of Vitamin B12 Deficiency?

The signs of a B12 deficiency can mimic other issues. Evaluation by your doctor via a lab draw or through Ulta Lab tests can help identify a deficiency.

Symptoms may include: megaloblastic anemia, fatigue, weakness, constipation, loss of appetite, weight loss. Neurological signs like numbness and tingling of the hands and feet can occur. Others include change in balance, depression, poor memory, mouth and tongue soreness.

Do you need to take it with food?

Vitamin B12 does not need to be taken with food. B12 supplements are best taken in the dissolvable or liquid form and studies demonstrate that 56% of a 1mcg oral dose supplement is actually absorbed. The injectable form is more efficient at raising B12 levels.

Does B12 interfere with the absorption of other nutrients?


Are there other nutrients that interfere with the absorption of B12?

While there are no nutrients that interfere with absorption of B12, certain conditions can interfere. For example diseases of the gastrointestinal tract and the availability of the intrinsic factor affects can interfere with its absorption.

What can cause a deficiency of Vitamin B12?

Malabsorption from food, pernicious anemia, post-surgical malabsorption and dietary deficiencies are the cause of B12 deficiencies.

What affects the absorption of Vitamin B12?

Age, pernicious anemia, gastrointestinal disorders, and gastrointestinal surgery can affect the ability of the body to absorb B12. Additionally, certain medications such as those for acid reflux (Proton pump inhibitors and H2 Blockers) cause a decrease in absorption of B12.

Metformin, a common drug for Type 2 Diabetes, decreases the absorption of vitamin B12. If you have been on these medicines for over 2 years check your B12 levels via a blood test.

Does it matter what time of day you take it?


Any tips of types/forms of  vitamin B12 supplement for people to take.

If you have a diagnosis of B12 deficiency, via a lab test, the best form is injectable.  However, dissolvable and liquid supplements are fantastic options if taken consistently. I use dissolvable tablets myself.

Stay tuned for more information on other common supplements. Comment, share and like!

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