Data sharing statement: No additional data are available
However, it's important to note that comprehensive human clinical trials remain limited, and most safety and efficacy data comes from animal studies
That means your body can draw from these stores for years before you start to show signs of a deficiency
You might also need a diagnosis for conditions like pernicious anaemia , an autoimmune issue that stops your body from absorbing B12 from food
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Lets Break Down the Strength When people ask are B12 injections stronger than tablets, theyre usually referring to the effectiveness and speed of raising B12 levels in the body, particularly in cases of deficiency