Dendrobium officinale whole powder extended female fruit fly lifespan and improved climbing performance while mitigating high-sugar diet damage through context-dependent AKT signaling modulation. The herb's non-polysaccharide fraction increased AKT/S6K phosphorylation and reduced FOXO in flies, yet paradoxically suppressed AKT activity in mammalian immune cells. Three specific compounds—dihydroconiferyl alcohol, homovanillyl alcohol, and taxifolin—drove the lifespan extension in yeast models. This represents significant validation of traditional Chinese medicine's longevity claims using rigorous molecular approaches. The context-dependent mechanism is particularly intriguing, suggesting the herb acts as an adaptive regulator rather than a simple pathway activator or inhibitor. However, the research remains limited to invertebrate models and cell culture, with no human or mammalian longevity data. The opposing effects in different cell types raise questions about optimal dosing and timing in complex organisms. While promising for supplement development, the findings require mammalian studies before translating to human longevity protocols. The work does advance our understanding of how traditional remedies might work through evolutionarily conserved aging pathways.