Curcumin increases lifespan in C. elegans and is associated with reduced ROS and lipofuscin during aging. Curcumin lifespan extension is attributed to its antioxidative properties. Lifespan extension had effects on body size and pharyngeal pumping rate but not on reproduction. Lifespan-extension by curcumin is abolished in osr-1, sek-1, mek-1, skn-1, unc-43, sir-2.1 and age-1 mutants, whereas curcumin treatment prolongs lifespan of mev-1 and daf-16 mutants [21855561]. C. elegans feed low concentration of curcumin have a decreased lipofuscin levels and enhanced the resistance to heat stress and increased mean lifespan by 39% and a maximum lifespan extended by 21.4% [23325575]. In fruit fly that survive an average of 64 days, an increase of mean lifespan to 80 days occurs in flies, with females of one strain and males of another strain experiencing an extension in lifespan. The lifespan response to curcimun exhibits variation in male and female, although the compound extends lifespan in both genders [23325575].

In fruit fly, 0.5 an 1.0 mg/g curcumin in the diet increases mean lifespan by 6.2 and 25% in females and by 15.5 and 12.6 in males, respectively. Lifespan extension by curcumin was associated with the increased superoxide dismutase (SOD) activity, upregulation of Ms-SOD and CuZn-SOD genes, and the downregulation of dInR, ATTD, Def, CecB and, DptB genes as well as reduction of lipofuscin, malondialdehyde and lipid peroxidation [22653297; 23325575]. Curcumin prolongs life and enhances activity of fruit fly Alzheimer diseased flies [22348084].