For patients seeking weight loss who request B12 injections, GPs should: Assess for genuine deficiency through appropriate blood tests rather than empirical treatment Provide education about the lack of evidence supporting B12 for weight loss in non-deficient individuals Explore underlying concerns about weight and energy levels, addressing these through appropriate channels Signpost to evidence-based resources such as NHS weight management services according to local pathways Patients should contact their GP if they experience unexplained fatigue, neurological symptoms (numbness, tingling, balance problems), or signs of anaemia (pallor, breathlessness, palpitations), as these may indicate B12 deficiency requiring investigation
Food is all around, and if youre used to eating what you want, it can be very difficult to turn it down
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Three to four weeks People with good absorption may still experience benefits, though many improvements linked to deficiency settle down sooner
Fast service and delivery
Whether youre on your first shot or your fifteenth, understanding your B12 form matters