what are vitamin b12 injections given for Injection Benefits: Energy, Mood, Metabolism B12 Shots & B12 Injections:

Thiamine (Vitamin B1) Essential for energy generation, brain and nerve function, and cardiac muscle activity

You can also report suspected side effects via the MHRA Yellow Card Scheme (yellowcard

A deficiency of vitamin B12 is fairly difficult to diagnose and there are quite a few variables that can lead to the deficiency or just not quite having enough of it regularly, so injections of vitamin B12 can benefit quite a few people who suffer from symptoms including brain fog, fatigue, lethargy, feelings of depression, tingling in their hands or feet, dizziness, and memory loss

Drinking heavily can make it harder for your body to absorb nutrients, including B12