A U.S. doctor, Dr. Kunal Sood, suggests peanut butter as a simple dietary hack to improve sleep quality. He explains that peanut butter contains tryptophan, an amino acid that aids serotonin production for brain calming. Additionally, its healthy fats help stabilize blood sugar, preventing nighttime awakenings caused by glucose spikes and crashes. The presence of magnesium is also noted for its role in relaxing the nervous system and promoting deeper sleep. Dr. Sood recommends consuming peanut butter at least two hours before bedtime.