Litcius/Paper detail

Daily walnut consumption increases 6-sulfatoxymelatonin urinary levels and can improve sleep quality: a randomized crossover trial

María Fernanda Zerón-Rugerio, Aradeisy Ibarra-Picón, María Diez-Hernández, Oriol Comas-Basté, Francisco José Pérez-Cano, Trinitat Cambras, Marı́a Izquierdo-Pulido

2025Food & Function7 citationsDOIOpen Access PDF

Abstract

= 0.006). Our findings highlight the potential of walnuts as sleep-promoting foods among young adults. Specifically, we demonstrated that a daily serving of 40 g of walnuts increases urinary 6-SMT levels, reduces sleep latency, and improves global sleep quality. Further research is needed to fully understand the underlying mechanisms involved in the diet-sleep association.

Topics & Concepts

Crossover studySleep qualityRandomized controlled trialUrinary systemSleep (system call)MedicineConsumption (sociology)Internal medicinePharmacologyInsomniaComputer sciencePathologySocial sciencePlaceboSociologyOperating systemAlternative medicineCircadian rhythm and melatoninSleep and related disordersThermoregulation and physiological responses