If youre struggling with low B12 levels or dealing with symptoms of deficiency, B12 methylcobalamin injections may provide a faster, more reliable solution
You should contact your GP or NHS 111 if you experience: Persistent diarrhoea lasting more than 7 days in otherwise healthy adults Blood or mucus in stools , which may indicate inflammatory bowel disease or infection Severe abdominal pain or cramping that is worsening or different from previous digestive symptoms Unexplained weight loss alongside bowel changes Signs of allergic reaction , including rash, itching, swelling, or difficulty breathing (call 999 or go to A&E for severe reactions) Neurological symptoms such as numbness, tingling, balance problems, or memory difficulties, which may indicate B12 deficiency is not being adequately treated Seek help sooner if you have red flag symptoms, are pregnant, immunosuppressed, elderly, or have significant underlying health conditions
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Usually, B12 capsules or tablets contain doses of between 50 and 5,000mcg, whilst B12 injections usually contain 1,000mcg
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Drowsiness, weakness Nerve injury accompanied by tingling and numbness in the hands and legs Loss of memory, confusion Dementia Depression Seizures Recommended Amounts of Vitamin B12 For men and women 14 years of age and older, the Recommended Dietary Allowance (RDA) is 2.4 micrograms (mcg) per day
