Age-related reduction of mitochondrial function is accompanied by a decline in the mitochondrial capacity for ATP production by oxidative phosphorylation [62], a reduction in the NAD + pool [63] by consuming processes (PARP, CD38, and SIRT1) [64], and further an increase in ROS generation by an inefficient electron transport chain (ETC) [26]
Bray GA, Heisel WE, Afshin A, Jensen MD, Dietz WH, Long M, et al
And one of the things that I have always suggested is N acetylcysteine because that's the precursor and we knew that that was like the one way that the body was able to produce it
10.1021/acsnano.1c06777 71 WuY.GuoT.QiuY.LinY.YaoY.LianW.et al (2019)
Phentermine, an FDA-approved appetite suppressant since 1959, works through central nervous system stimulation, while tirzepatide (Zepbound, Mounjaro), approved in 2023 for obesity, operates through dual GIP/GLP-1 receptor pathways