what is the benefits of b12 injections Do Help with Fatigue and Low Energy? Vitamin B12 Injections for Energy,

From a public health perspective, our findings support the implementation of non-invasive vitamin B12 supplementation strategies

Significant main effects of treatment group (prior to BenjaminiHochberg correction since none were significant after correction, although the necessity of correction for multiple comparisons in exploratory analyses remains unresolved 49 ) were observed for the unclassified group and ten classified genera, namely, Acetatifactor , Akkermansia , Erysipelatoclostridium , [ Eubacterium ] coprostanoligenes group , Family XIII UCG-001 , Lactobacillus , Parasutterella , Ruminiclostridium 6 , Ruminococcaceae UCG-004 , and Ruminococcaceae UCG-009

If found deficient, 1,000 g/day to achieve normal levels

I take 15mg ,2x daily of Methylcobalamin

Note also that 5-Amino-1MQ is well documented as orally bioavailable and is usually sold and dosed as an oral capsule