Tart cherry consumption improves sleep quality and increases melatonin levels in adults with sleep disorders
A systematic review of seven interventional studies found that tart cherry consumption significantly improved sleep indicators such as sleep duration, sleep efficiency, or sleep onset time in three studies, and increased melatonin levels in three studies. Two studies also reported decreases in inflammatory markers like CRP and MDA. However, the evidence is limited and heterogeneous due to variations in dose, duration, and population characteristics.
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Tart cherry consumption improves sleep quality and increases melatonin levels in adults with sleep disorders The current body of evidence comprises 1 study. EvidenceHub rates the overall confidence at 32/100 (low).
The Claim
Tart cherry consumption improves sleep quality and increases melatonin levels in adults with sleep disorders
This conclusion is most relevant to: Adults with sleep disorders or sleep complaints (specific demographics not detailed in abstract).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸The Effect of Tart Cherry on Sleep Quality and Sleep Disorders: A Systematic Review. (Food science & nutrition, 2025) —
How It Works
The proposed biological pathway:
- ▸Tart cherries provide exogenous melatonin
- ▸Anthocyanins in tart cherries reduce inflammation and oxidative stress
- ▸Reduced inflammation may improve sleep regulation
- ▸Result: Improved sleep quality and duration
Who Might Benefit
Evidence fit by population:
- ▸Adults with sleep disorders or sleep complaints (specific demographics not detailed in abstract)
Recommended Dose
N/A
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Large differences in dose, duration of intervention, and characteristics of participating populations across studies
- ▸Limited number of studies (only seven interventional studies included)
- ▸Heterogeneous evidence prevents definitive conclusions
Frequently Asked Questions
How does tart cherry improve sleep?▼
Tart cherries contain melatonin and anthocyanins, which may help regulate sleep-wake cycles and reduce inflammation, potentially improving sleep quality.
What is the recommended dose of tart cherry for sleep?▼
The abstract does not specify a recommended dose due to variability across studies; typical amounts in research include tart cherry juice or concentrate.
Is tart cherry effective for all types of sleep disorders?▼
The review suggests benefits for sleep quality and duration, but evidence is limited and heterogeneous, so effectiveness may vary by individual and disorder type.
Are there any side effects of tart cherry consumption?▼
The abstract does not mention side effects; tart cherry is generally considered safe, but high doses may cause digestive issues in some individuals.
References
- 1.Barforoush F, Ebrahimi S, Abdar MK, Khademi S, Morshedzadeh N. “The Effect of Tart Cherry on Sleep Quality and Sleep Disorders: A Systematic Review..” Food science & nutrition, 2025. PMID: 40964149 DOI: 10.1002/fsn3.70923