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Side effects About 50% of users reported nausea and one-third reported diarrhea in RANDs survey
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Contact your GP if B12 is significantly elevated without obvious explanation, remains high on repeat testing, or if you experience unexplained symptoms such as weight loss, persistent fatigue, night sweats, unusual bruising, or signs of liver disease
doi: 10.1186/1471-2180-9-123 84 MarkowiakP.SlizewskaK
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