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Lu J, Tan M, Huang WC, Li P, Guo H, Tseng LM, Su XH, Yang WT, Treekitkarnmongkol W, Andreeff M , Symmans F, Yu D

363 The autonomous hepatic clock induces the NAD + salvage pathway to partially restore NAD + oscillation, driving the SIRT1 circadian function in the liver even without inputs from other clocks

J Leukocyte Biol (1993) 54(5):44450

Prebiotics /fibers: Inulin, fructo-oligosaccharides, partially hydrolyzed guar gum (PHGG), resistant starches (in small, tolerable amounts) help nourish beneficial bacteria

The flavonols quercetin and fisetin (found in fruits and vegetables such as apples, berries, and persimmons) similarly promote neuronal survival and anti-inflammatory effects (20, 21)