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Oral B12 supplements have to pass through the gut, and absorption can be limited especially if you have digestive issues, take certain medications like metformin or antacids, or simply have low stomach acid
E., & Akyuzc, S
Preparations containing benzyl alcohol are contraindicated for pregnant women and children due to potential toxicity risks
Structurally, the quaternary nitrogen at position 1 carries a permanent positive charge that no change of pH removes
The common side effects of B12 IV infusions include minor bruising at the catheter site, a cooling sensation during fluid delivery, and occasional lightheadedness
What it is not: a clinical trial
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