Typical research range: Most controlled studies remain within 5002000 g per administration
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
Body composition changes are not yet visible
Up to 1520% of adults have low or borderline B12 levels , and deficiency is a known cause of neuropathy
By boosting GLUT4, 5-amino-1MQ appears to encourage adipocytes to produce a distinct class of lipids called PAHSAs (palmitic acid esters of hydroxy-stearic acids)
In addition, people that avoid animal products can be deficient in B12