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Unlike oral supplements, which may not be well-absorbed, vitamin B-12 injections deliver this essential nutrient directly into the bloodstream for maximum absorption and fast results
That matters because, unlike most peptides, a small molecule can be studied orally as well as by injection it has no peptide bonds for digestive enzymes to cleave
Given my results, would an oral supplement realistically raise my levels
The shot's effects also depend on how much vitamin B12 you get in your diet
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