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Allergic reactions may also occur, in the form of itching, urticaria or eczema
BMJ (Online) 349
Real talk it depends on where youre starting from
Usually, B12 is absorbed once it is attached to the protein intrinsic factor (IF), made by cells in the stomach
Rotate injection sites systematically (abdomen, thighs, upper arms) to reduce local irritation and prevent lipohypertrophy [14]
Engaging in gentle, frequent arm movements reduces stiffness and discomfort
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