3 Factors other than ageing that can lower glutathione levels: Chronic stress Smoking and alcohol use Poor and inadequate nutrition Prolonged exposure to environmental toxins Chronic diseases Clinical studies have shown that glutathione deficiency is the primary cause of oxidative stress in older individuals, and that this can be corrected by dietary cysteine and glycine supplementation
[DOI] [PubMed] [Google Scholar] 123.Ostermann M., Chang R
If you conduct research in the UK, you have additional benefits by using a UK-registered supplier: faster shipping, easier customs clearance and, therefore, higher responsibility level
When glutathione neutralizes a free radical, it becomes "oxidized" and loses its power
Less common side effects include difficulty swallowing, dizziness, and flushing
In fact, studies have shown that supplementing with NAC may help improve immune responses, particularly in older adults and those with compromised immune function