Vitamin B12 is essential for healthy regeneration of your body at the cellular level. It is responsible for DNA and red blood cell production. B12 must be consumed on a regular basis if your body is to make the necessary repairs from routine damage, and B12 cannot be produced naturally. Animal proteins are one of the best sources of Vitamin B12. Things like fish, dairy, eggs, and lean meats will help you get the 2.6 mcg an adult needs. Those who choose to follow a vegan or vegetarian diet may need to supplement their diets. Certain gastrointestinal conditions make it more difficult to absorb enough of this vitamin. Crohn's disease, weight loss surgery (gastric bypass and the gastric sleeve), and atrophic gastritis all make it difficult for your gut to extract the vitamin B12 from foods you eat. People who drink alcohol excessively or have bacterial growths or parasites also have a hard time absorbing Vitamin B12. Long-term lack of B12 can lead to a condition known as pernicious anemia.
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Chronic fatigue or tiredness is one of the most common symptoms of Vitamin B12 deficiency. The body is unable to convert carbohydrates into glucose to provide energy. Brittle bones are another sign of B12 deficiency because the vitamin is vital to maintaining bone density and processing calcium. Long periods of low bone density can also result in osteoporosis. Additionally, vitamin B12 deficiency can lead to poor memory and lack of concentration, heart palpitations, and mouth sores.
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