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Parietal cells in the stomach produce a glycoprotein called intrinsic factor, which is necessary to absorb vitamin B12 in the terminal ileum

A study in the Journal of Clinical Biochemistry says, Vitamin B12 deficiency can cause big problems with nerves and blood. Vitamin B12 is key for making DNA, fatty acids, and energy. Source: Journal of Clinical Biochemistry Common Signs of Deficiency A Vitamin B12 shortage can show in many ways, like: Fatigue and weakness Numbness or tingling in hands and feet Difficulty walking Mood changes, such as depression Spotting these signs early is key for quick action

Deficiency in vitamin B12 may cause anemia, fatigue, muscle weakness, intestinal problems, nerve damage, and mood disturbances

ME 12 Injection rarely shows side effects

You're taking the right steps, but something still feels off

Protein intake deserves particular attention