Recommended: One (1) capsule each day as a dietary supplement or as otherwise directed by a healthcare professional.

There have been numerous studies using NAC, with COPD, particularly amongst patients who smoke. Utilizing NAC in smokers with chronic bronchitis showed a significant reduction in the number of positive bacterial cultures in these patients. An additional six-month study demonstrating the effects of NAC on chronic bronchitis indicated a significant reduction in sick-leave days for the NAC group, compared to placebo. Another study utilizing NAC indicated potential benefits for chronic bronchitis, resulting in a significantly lower exacerbation rate in patients administered NAC, compared to placebo. In the group administered NAC, 40% remained free from exacerbations, compared to 19% in the placebo group. The study also indicated that the sick-leave rate due to exacerbation in the NAC group was significantly infrequent.

NAC has also been shown to be radioprotectant against oxidative damage. Additionally, researchers have sited the beneficial use of NAC for the improvement of insulin sensitivity in women with polycystic ovary syndrome (PCOS), noting a significant improvement in circulating insulin levels, as well as insulin sensitivity in these patients.

Since it easily passes through cellular membranes, NAC has been shown to be readily absorbed. It is also resistant to enzymatic breakdown and is important for cellular glutathione production.

NAC supplies 500mg of N-Acetyl-L-Cysteine per capsule.

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