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It is a hormone released from the small intestine after eating and plays an important role in regulating blood glucose, insulin release, appetite, and digestion
Multiple human studies confirm measurable improvements in skin thickness, firmness, and fine lines
In rare cases, B12 injections can cause more serious side effects
Based on in vitro studies, NAC may interact with certain oral antibiotics
Source data are provided in this paper
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Some patients benefit from weekly injections initially, tapering to monthly maintenance once levels normalize
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