Both types of injections are generally administered intramuscularly and are often used in conjunction with other treatments or lifestyle changes to maximize their benefits
Losing taste would relate to food, rather than injections Food Poisoning, well, if one does use when out of date/expired, then you have to accept consequences but things like milk, yoghurt, cream etc, one's nose and eyes can give a strong clue
However, vitamin B 12 deficiency does not generally develop until after at least two-to-three years of continuous therapy (137-139)
The compound also preserves S-adenosyl methionine (SAM) levels, supporting healthy methylation processes essential for gene expression and cellular function
For many, these signs might lead them to wonder about their vitamin B12 levels
This matters most for people who have trouble absorbing nutrients in the first place