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can i take glutathione while taking antibiotics What is and why must we protect patient access to it? What Happens When You Stop
Description
When B12 levels become problematic: High-dose supplementation (particularly doses exceeding 1,000 micrograms daily) Frequent B12 injections without medical supervision Underlying conditions affecting B12 metabolism Concurrent use of multiple B12-containing supplements The NHS does not set an upper safe limit for vitamin B12 because harmful effects from excessive intake have not been definitively established

2012 May;129(5):e1121-8

This lack of regulation raises concerns about product purity, dosage accuracy, and contamination with harmful substances

doi: 10.1074/jbc.M406563200