how should b12 be injected to self-inject intramuscular vitamin - Overview Treating Severe Vitamin B12 Deficiency

Chronic heavy alcohol consumption can impair B12 status through poor dietary intake and malabsorption, though occasional alcohol is unlikely to significantly affect supplement absorption

American Journal of Epidemiology

Diagnosis involves serum B12 measurement, full blood count, and investigation for underlying causes including intrinsic factor antibodies for pernicious anaemia

The 65-year-old's condition has since improved immeasurably but the beauticians will only give her an injection every three months so her quality of life is still greatly undermined

For those using oral supplements, consistency in taking them is more important than specific timing around meals