The problem is that B12 needs something called Intrinsic Factor, which your stomach produces, to be absorbed properly through your digestive system
[1] For licensed B12 medicines, detailed information about side effects can be found in the product's Summary of Product Characteristics (SmPC)
We look at the full picture: hormone levels, lifestyle, health history, and goals
A thicker needle is necessary for IM injections to penetrate the muscle tissue effectively
UK guidelines recommend monitoring clinical response and full blood count (typically at around 2 months) to ensure treatment adequacy, rather than routinely rechecking B12 levels after replacement has started
Those with uncontrolled anxiety should consult a healthcare provider before use, as alternative weight loss methods may be safer