These injections deliver B12 directly into the bloodstream via an intramuscular injection (shot)
This bypasses the GI tract entirely, which is the whole point: it's designed for people whose digestive system can't absorb B12 reliably
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Peptide drugs may have some advantages over other drugs because they may: Be easier to send where they need to go in your body Have fewer side effects Be safer because when your body breaks them down, their byproducts are amino acids that your body can recycle Studies show that some peptides may also have benefits for your skin, muscles, and maybe your weight
Even though it is found in many foods, a Vitamin B12 deficiency is still relatively common
Nevertheless, his case is sometimes cited as an example of vitamin B12 deficiency and how severe it can get with time, if left untreated, it can lead to serious health issues, including neurological symptoms like dementia