Power Thesaurus. 1969. pancreas thesaurus http://www.powerthesaurus.org/pancreas/synonyms (accessed April 14, 2017).
Having vitamin B12 deficiency means that your body does not have enough of this vitamin. You need B12 to make red blood cells, which carry oxygen through your body. Not having enough B12 can lead to anemia, which means your body does not have enough red blood cells to do the job. This can make you feel weak and tired.Vitamin B12 deficiency can cause damage to your nerves and can affect memory and thinking.his can happen if: 1  You have pernicious anemia. 2  In this anemia, your body destroys the cells in your stomach that help you absorb vitamin B12. 3  You have had surgery to remove part of the stomach or the last part of your small intestine, called the ileum.
Vitamin B12, also known as methylcobalamin or cyanocobalamin, is an indispensable nutrient commonly found in a variety of non-plant based foods, such as fish, shellfish, meat, eggs, and dairy products.Because animal products provide optimum food sources for vitamin B12, vegans have the greatest risk for deficiency.Vegetarians who eat eggs and milk products are also at risk because, on average, they consume less than half of the adult Recommended Dietary Allowance (RDA) of vitamin B12.race amounts of vitamin B12 can be found within tempeh, seaweeds and organic plants in specific geographic regions. ** But unless and until these foods are shown consistently to correct vitamin B12 deficiency, vegans should not rely on them as a vitamin B12 source.