sublingual vitamin b12 vs injections vs. Supplements: Which Works Best? B12 Injections vs Oral Supplements:

Consuming too few calories can cause your body to go into starvation mode, resulting in loss of lean muscle mass rather than fat

Some GPs Practices proudly report they are moving more and more patients onto tiny and useless 50mcg cyanocobalamin tablets unless they have a diagnosis of pernicious anaemia

References Stier H

Whilst B12 plays an essential role in energy metabolism, red blood cell production, and nervous system function, there is no evidence that supplementation increases energy in individuals with normal B12 status

This includes better regulation of blood sugar levels and a reduced risk of metabolic disorders such as type 2 diabetes