Any disruption along this pathway can lead to deficiency regardless of dietary intake, which is why some patients need supplementation even when they eat B12-rich foods
Discovered in 2015, it has become a central tool in research on AMPK signalling, metabolic homeostasis, and mitochondrial-nuclear crosstalk
References Kommu, S., & Whitfield, P
I have seen positive effects from the injections
The natural sources are all animal-derived: meat, fish, eggs, milk and cheese
Angle of injection too vertical : As discussed above in detail, the angle of injection may not be severe enough in young children who have very little fat to deal with in order to hit fatty tissue and not muscle