A WHO consultation identified the most vulnerable groups as elderly individuals, infants, preschool-aged children, and pregnant or lactating women, due to either increased nutritional demands or impaired absorption capacity ( Addressing the prevention of B12 deficiency and its public health implications requires a comprehensive, life-course approach based on integrated strategies targeting early detection, dietary optimisation, and effective supplementation, in order to mitigate the long-term consequences of inadequate cobalamin status ( Intramuscular (IM) injection is the most invasive and costly administration method, requiring trained personnel and clinical visits

Symptoms of B12 Deficiency The symptoms of vitamin B12 deficiency can range from mild to severe and may include: - Fatigue and weakness - Anemia - Nerve problems like numbness and tingling - Balance issues - Cognitive difficulties, such as memory loss or difficulty thinking clearly - Mood changes, including depression - Skin problems, such as jaundice (yellowing of the skin) or a sore tongue Recognizing these symptoms early can lead you to consider B12 supplementation, but which form is the best for you
Treatment typically involves vitamin B12 supplementation, either through oral supplements or injections, depending on the severity of the deficiency and underlying causes.
Self-Administration Guidelines for Home Use For patients who need ongoing vitamin B12 injections, self-administration at home can be convenient
Inform your healthcare provider about your diet, including any fortified foods you consume, to ensure you are getting the right amount of B12