is oral replacement better than injectable b12 after gastric bypass Bariatric patients often need to take their Vitamin in a sublingual (under the tongue) form, or injections or nasal spray form, because the surgery alters the stomach's ability to produce the Vitamin B12 Injections vs. Supplements:
Vitamin B12 Injections vs. Supplements: Which is Right for You? Efficacy of oral compared with intramuscular vitamin B 12 supplementation after Roux en Y gastric bypass: a randomized controlled trial ScienceDirect Feasibility of Oral Vitamin B12 Supplementation After Total Gastrectomy: Single Institution Cohort Athenaeum Scientific Publishers Why is B12 Prescribed to Bariatric Patients? LIMARP
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