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Cherry juice (tart cherry) or Sleep supplements (melatonin, glycine, magnesium)?
Both items are reviewed in the reference. Below their characteristics sit side by side as the studies describe them. This is a comparison of data, not advice on what to choose.
| Cherry juice (tart cherry) | Sleep supplements (melatonin, glycine, magnesium) | |
|---|---|---|
| evidence level | B | C |
| Sources in the review | 2 | 4 |
| Category | Recovery | Recovery |
| Goals | Endurance, Recomposition | Recomposition, Endurance |
| Dosage | 30-60 ml of concentrated juice or 240-480 ml of ordinary juice, once or twice a day, as a course around a period of training. | Melatonin 0.5-5 mg (less for shifting the rhythm, several hours before sleep); glycine 3 g before sleep; magnesium 200-400 mg elemental. There are no single ergogenic doses. |
| When to take | On days of intense exercise and for several days of recovery; intake before exercise may blunt adaptation, so it is better afterwards. | 30-60 minutes before sleep; melatonin for jet lag - 30 minutes before the target sleep time in the new time zone. |
The conclusion from the data. In the reference «Cherry juice (tart cherry)» Level B and 2 sources, while «Sleep supplements (melatonin, glycine, magnesium)» — Level C and 4. A higher level means the effect is better supported by research, not that the item suits you better.
Verdicts
Cherry juice (tart cherry)
Moderately reduces pain and markers of damage after exercise
Sleep supplements (melatonin, glycine, magnesium)
Sleep is critical, but the evidence of benefit of supplements for performance is weak
Sources for both items
- Tart Cherry Supplementation and Recovery From Strenuous Exercise: A Systematic Review and Meta-Analysis · Hill JA, Keane KM, Quinlan R · International journal of sport nutrition and exercise metabolism, 2021 · PMID 33440334
- Prevention, diagnosis, and treatment of the overtraining syndrome: joint consensus statement of the European College of Sport Science and the American College of Sports Medicine · Meeusen R, Duclos M, Foster C · Medicine and science in sports and exercise, 2013 · PMID 23247672
- Effects of Acute Sleep Loss on Physical Performance: A Systematic and Meta-Analytical Review · Craven J, McCartney D, Desbrow B · Sports medicine (Auckland, N.Z.), 2022 · PMID 35708888
- Sleep and athletic performance: the effects of sleep loss on exercise performance, and physiological and cognitive responses to exercise · Fullagar HH, Skorski S, Duffield R · Sports medicine (Auckland, N.Z.), 2015 · PMID 25315456
- 2023 International Olympic Committee's (IOC) consensus statement on Relative Energy Deficiency in Sport (REDs) · Mountjoy M, Ackerman KE, Bailey DM · British journal of sports medicine, 2023 · PMID 37752011