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Low Vitamin B-12 Symptoms Quiz

What is B12?

Vitamin B12, also known as cobalamin, is a water-soluble vitamin required for many reactions in your body as well as for the health of your nerves, red blood cells, and DNA. Its most important role is as a methyl group donor, which is a crucial step in many of our main detoxification pathways.

Best sources of B12

Our bodies do not make vitamin B12, which means that we must get it through our diet or through supplementation. The average adult needs 2.4 micrograms a day, and the best dietary sources of vitamin B12 are animal products such as:

Common Causes of B12 Deficiency:

The absorption, assimilation and methylation of B12 is a very complex process, which leaves many opportunities for error. For this reason, even those who consume sufficient amounts of vitamin B12 in their diets could still have a functional B12 deficiency.  Some causes of B12 deficiency are:

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