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Between 15-40% of people over 60 have low serum B12 levels (Pacholok & Stuart, 2011)
Additionally, its effects on gut motility and bowel function mean it warrants caution in patients with bowel obstruction or severe gastrointestinal surgery history
The most prominent clinical breakthrough regarding NAC for Long COVID brain fog comes from the Yale School of Medicine
Long-term use should be approached cautiously because some patients report mild side effects like nausea or injection site discomfort, and research on prolonged use is limited. To minimize the risk of adverse reactions, always get the injections from a registered physician
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