Gender-specific data were available in some studies, reporting 268 males and 288 females
This complex process means that conditions affecting the stomach or intestines can significantly impair B12 absorption, including pernicious anaemia, atrophic gastritis, previous gastric surgery, coeliac disease, Crohn's disease, and long-term use of certain medications (such as metformin, proton pump inhibitors, and H2 antagonists)
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However, vitamin B12 is unique amongst water-soluble vitaminswhilst it shares their aqueous properties, the body can store substantial amounts in the liver for several years
Always work with gloves in an environment with minimal airflow to reduce the risk of contamination