This evolutionary paradox reframes modern nutrition as an ongoing experiment in adaptation shaped by rapid environmental change rather than slow biological evolution. Several priorities emerge for future inquiry. First, in neuro-nutrition, to what extent do contemporary dietary lipid profiles influence neuroplasticity, stress-related neural responses, and trajectories of cognitive aging across the lifespan? Second, in evolutionary biology, how do genetic variation and cultural inheritance interact to shape vulnerability or resilience to hedonic overeating, given that biological selection is unlikely to keep pace with modern food environments characterized by high variability and frequent alterations? Third, in cultural adaptation, which modifications of food environments meaningfully attenuate reward-driven overconsumption at scale, and under what conditions might emerging precision nutrition approaches, including nutrigenomics and gut–brain theraputics, provide additive benefit?

Integrative strategies linking longitudinal human cohorts with multi-omics profiling of microbiota, metabolism, and gut–brain neurochemistry may clarify the biological substrates of fat craving and identify modifiable targets for prevention and treatment. Such approaches are particularly needed to determine how sustained dietary lipid exposure over the life course recalibrates reward circuitry, metabolic flexibility, and long-term resilience to obesogenic environments.