It has antioxidant and anti-inflammatory effects, has an antimicrobial effect against the acnes bacterium, and promotes wound healing
In a 2017 mouse study, researchers found that mice consuming an atherogenic diet altered the metabolism of SAA and lipids
It must be noted that the GSH levels might be effective in the relationship between NAC and reproductive biomarkers (Reference Atkuri, Mantovani and Herzenberg50)
Want the fundamentals first
Beyond, it seems that there is an inverse relationship between Oscillibacter (a genera increased in patients with BD) and the levels of tryptophan and KYNA, thereby supporting the relevance of gut microbiota in the altered Kyn pathway and neuroinflammation [235]
Several dietary supplement ingredients may help reduce joint pain (particularly of the knee or hands, but not the back or hip) due to osteoarthritis (worn joints), although the evidence is not overwhelming (see What It Does)