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 Efficacy of oral compared with
Efficacy of oral compared with intramuscular vitamin B 12 supplementation after Roux en Y gastric bypass: a randomized controlled trial ScienceDirect Do You Still Need B12 Injections After Bariatric Surgery? Bari Enhance Feasibility of Oral Vitamin B12 Supplementation After Total Gastrectomy: Single Institution Cohort Athenaeum Scientific Publishers Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta analysis Irish Journal of Medical Science (1971 )
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