Lifestyle considerations: While dietary B12 intake is not relevant in pernicious anaemia (due to malabsorption), maintaining a balanced diet supports overall health
So let me give you a clear, honest, evidence-based look at what we actually know, what remains uncertain, and what I tell my patients when they ask about it
Alcohol can interfere with the absorption of vitamin B12 and may counteract the benefits of the shot
As we age, the immune system slows, loses precision, and low-grade inflammation rises
A sharps container provides safe disposal for used needles
Even in people without overt deficiency, B12 injections can correct subclinical insufficiency more rapidly than oral supplementation