Tart cherry juice has relatively high levels of melatonin, a substance that assists in regulating sleep cycles, according to a preliminary study published by the National Center for Biotechnology Information. The study also speculates that the anti-inflammatory effect of anthocyanins in cherries may play a role in promoting better sleep.
The findings of the study published by the National Center for Biotechnology Information suggest that tart cherry juice can have small beneficial effects on improving sleep in older adults suffering from insomnia. The cherry juice utilized in the study was made with fresh Montmorency sour cherries. The ideal dosage required to generate maximum efficacy is uncertain, and it is also unknown as to whether or not cherry juice from a concentrate can produce similar results.