B12 plays a crucial role in serotonin production, helping to regulate mood, reduce stress, and promote emotional well-being
Doctors decide on B12 injections based on a full check-up and lab tests to confirm the deficiency
The concern is not that 5-Amino-1MQ is inherently hazardous, but that understanding of the methylation network is still developing
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