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does b12 have to be an injection The Advantages of Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine Size:25 Grams Vitamin B12—Multifaceted In Vivo free-tin
Vitamin B12—Multifaceted In Vivo Functions and In Vitro Applications - PMC
Some patients are unable to break down the protein to absorb vitamin B12 into the bloodstream while others are at risk for low levels of B12 because the food consumed doesn’t contain high enough amounts of B12, such as vegetarians or vegans
free-tin
Size:25 Grams
In those cases the clinical decision depends on the full picture, GI history, dietary pattern, symptom duration, and whether a therapeutic trial of injections is appropriate before committing to a long-term protocol
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