Researchers had seven older adults with insomnia drink eight ounces of Montmorency tart cherry juice twice a day for two weeks, followed by two weeks of no juice, and then two more weeks of drinking a placebo beverage. Compared to the placebo, drinking the cherry juice resulted in an average of 84 more minutes of sleep time each night.
Cherry juice is a natural source of the sleep-wake cycle hormone melatonin and the amino acid tryptophan, says study coauthor Frank L. Greenway, director of the outpatient research clinic at the Pennington Biomedical Research Center at LSU.
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