Mechanistic Effect of Walnut Consumption on Sleep Quality

Participants will add one serving (1 oz) of walnuts at their self-defined breakfast, lunch, and dinner for 4 days. The study will provide study foods at 3 main meals each day to evaluate a temporal effect of the food on melatonin concentrations throughout the day.

"Participants will add one HCHS food (one PopTarts® pastry) to each of their 3 main meals of the day for 4 days. The study will provide study foods at 3 main meals each day to evaluate a temporal effect of the food on melatonin concentrations throughout the day.~An energy-matched high-carbohydrate, high-sugar (HCHS) alternative, representative of a common US snack food, on sleep quality in adults with habitually poor sleep quality."