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Shafie et al., 2024)

Diagnosis of airway hyperreactivity (AHR) in patients suspected of having asthma Methacholine Challenge Test 1 ) breathing test that is performed before the methacholine challenge, and after each incrementally increased dose of methacholine is administered

One study found a 40% increase of glutathione levels in blood after just one week of supplementation

Not a vague blue serum with no concentration listed, and not a DIY powder that leaves people guessing

An impressive 45.8% of patients taking NAC at doses greater than 600 mg/day reported significant positive clinical effects in managing their systemic fatigue and cognitive dysfunction