N-Acetyl-Cysteine (NAC) is a source of the conditionally essential amino acid L-cysteine and a precursor to the tripeptide glutathione. NAC and glutathione support antioxidant and detoxification activity in the body as well as supporting healthy respiratory function.
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NAC
I love this stuff. It has made a huge difference in my breathing and coughing as my lungs are clearing up. I suspect that my energy is increased but I am not sure. Perhaps it is just that I am breathing easier and that takes less work which gives me more energy.
