The mechanism of metformin has been studied endlessly, but the mechanism has not yet been fully clarified
Theres a supplement for that
(2017) The glutamate/cystine xCT antiporter antagonizes glutamine metabolism and reduces nutrient flexibility, Nat
Following these data, deletion of endogenous Mecp2 with a specific small hairpin RNA interference reduced spine density after 96 h of expression and decreased the number of mature-shaped dendritic spines [374]
Simultaneously, decarboxylated S-adenosylmethionine (dcSAM), derived from Met metabolism, serves as the source of aminopropyl groups for the synthesis of spermidine and spermine (Wallace et al., 2003)
As with any supplement regimen, adjust based on your individual tolerance and goals