Aging is by far the most prominent risk factor for Alzheimer's disease(AD),and both aging and AD are associated with apparent metabolic alterations.As developing effective therapeutic interven-tions to treat AD is clearly in urgent need,the impact of modulating whole-body and intracellular meta-bolism in preclinical models and in human patients,on disease pathogenesis,have been explored.There is also an increasing awareness of differential risk and potential targeting strategies related to biological sex,microbiome,and circadian regulation.As a major part of intracellular metabolism,mitochondrial bioen-ergetics,mitochondrial quality-control mechanisms,and mitochondria-linked inflammatory responses have been considered for AD therapeutic interventions.This review summarizes and highlights these ef-forts.