Directly injecting B12 bypasses the digestive system, making it an ideal solution for those with dietary restrictions, absorption issues, or anyone looking to enhance their energy levels and metabolism
In people with normal levels, no significant benefit has been shown
Injections are particularly appropriate for those with: Pernicious anaemia, an autoimmune condition affecting B12 absorption Conditions affecting the stomach or small intestine, such as Crohns disease or coeliac disease Those who have had gastric surgery or bariatric procedures Strict vegans and vegetarians not meeting their B12 needs through food or oral supplements For those who can absorb B12 normally, oral supplements are generally an effective and well-evidenced alternative to injections

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