giving b12 injections Best Vitamin Injection Site: Administering B12 Shots How to Give Yourself a
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In people with normal absorption, deficiencies have been reported only in strict vegetarians who consume no products of animal origin (including no milk products or eggs)

PubMed, Hemoglobin Test Mayo Clinic
By doing so, you create a robust foundation for sustained energy and mood enhancement

Doctors look at many things to decide how often you should get B12 shots

The British National Formulary (BNF), the British Society of Haematology Guidelines, NHS Clinical Knowledge guides, Integrated Care Board guidance notes such as this one from NHS Cambridgeshire and Peterborough, Vitamin B12 full guidance
