It is synthesized exclusively by micro-organisms (e.g., Lactobacillus spp ) (LeBlanc et al., 2013), which are also found in the gastrointestinal tract of herbivorous animals, where the synthesis of B12 occurs and the vitamin can be acquired in animal tissues
Vitamin B12 injections are most clinically appropriate in cases of confirmed vitamin B12 deficiency, malabsorption syndromes including pernicious anaemia or post-gastric surgery, significant symptoms where rapid restoration of vitamin B12 levels is required, or failure of oral supplementation due to poor absorption
Low Energy and Fatigue If fatigue is your primary struggle, this may be where you notice the most significant improvement
It acts as a roborant in cases of stress, overexertion, exhaustion and reduced resistance, and as a tonic in cases of weakness, secondary anaemia and chilling