is oral replacement better than injectable b12 after gastric bypass Frontiers Efficacy of sublingual and oral
Efficacy of sublingual and oral vitamin B12 versus intramuscular administration: insights from a systematic review and meta analysis PMC Bariatric patients often need to take their Vitamin B12 in a sublingual (under the tongue) form, or injections or nasal spray form, because the surgery alters the stomach's ability to produce the B12 Injections vs Pills: Richmond's Complete Guide Should You Take Natural vs. Synthetic B12?
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