b12 injections making me feel tired Feeling All the Time? It Might Be a Vitamin Deficiency What You Need to Know
Description
Im a community carer which is very physical and demanding..as well as having 2 young children

Can I have B12 injections if I am pregnant or breastfeeding
Because of lack of renal clearance, serum values rose to more than a hundredfold from 422 pmol/L on average to 54 000 pmol/L, with 67 000 pmol/L as highest value, without side-effects

Propionylcarnitine (C3) and its ratios with acetylcarnitine (C3/C2) and palmitoylcarnitine (C3/C16) In addition to the four canonical markers discussed above, vitamin B 12 deficiency leads to accumulation of propionylcarnitine (C3) (Sarafoglou et al., 2011), which is a marker of methylmalonic aciduria and propionic acidemia
Technology appraisal guidance [TA1026]

For instance, the cblC defect, the most prevalent among these disorders, is caused by a MMACHC mutation and impairs the conversion of dietary cobalamin into both coenzyme forms