see a doctor<\/a><\/strong> if you think you may have vitamin B12 deficiency, especially if you have symptoms such as extreme tiredness, lack of energy, pins and needles, a sore or red tongue, muscle weakness, vision problems, or changes in memory, understanding, or judgement. Prompt treatment is particularly important when vitamin B12 deficiency is accompanied by significant blood abnormalities or neurological symptoms.\u00a0<\/p>\n\n\n\nPeople at higher risk, including strict vegans, people with pernicious anaemia, those taking certain long term medications that include proton pump inhibitors, biguanides, contraceptive pills, people with gastric conditions like coeliac disease or inflammatory bowel disease, and those who have had gastric surgery, should be cautious and evaluate regularly for this condition15<\/a><\/sup>.\u00a0<\/p>\n\n\n\nIt is important to seek medical evaluation because vitamin B12 deficiency can often be diagnosed with symptoms and a blood test, and treatment should begin as soon as possible for a better outcome. Although many symptoms improve with treatment, some problems caused by vitamin B12 deficiency, particularly nervous system problems, can sometimes be irreversible18<\/a><\/sup>.<\/p>\n\n\n\nAlso Read: