Tart cherry juice showed mixed recovery benefits

Tart cherry juice is often promoted as a recovery aid for athletes. This study matters because runners and coaches need to know whether it actually helps after hard, muscle-damaging exercise, or whether it is just expensive purple optimism.

Reference: Daab et al. Effects of Tart Cherry Juice Supplementation on Recovery from Exercise-Induced Muscle Damage in Athletes: A Systematic Review and Meta-Analysis. Sports Medicine - Open (2026) DOI: 10.1186/s40798-026-00993-3.

Study snapshot

A quick, practical summary for runners and coaches.

Quick answer

This systematic reviewA systematic review answers a specific research question by systematically collating all known experimental evidence, which is collected according to pre-specified eligibility criteria. A systematic review helps inform decisions, guidelines, and policy. and meta-analysisA meta-analysis quantifies the overall effect size of a treatment by compiling effect sizes from all known studies of that treatment. examined tart cherry juice for recovery after muscle-damaging exercise in trained athletes. Tart cherry juice showed some benefits for strength recovery and inflammation, but the evidence was mixed. The main caution is that soreness and real-world running benefits were not clearly improved.

Key takeaways

  • Tart cherry juice may support some recovery markers after hard exercise.
  • The evidence was variable, and many findings were low certainty.
  • Runners should see it as an optional recovery tool, not a recovery miracle.

How confident should we be?

Evidence confidence: Low

The review was well reported and used a strong evidence-synthesis design. But the included studies were small, varied, and often only loosely relevant to real-world running.

Bottom line

Tart cherry juice might be worth testing around unusually hard races or training blocks, especially when quick recovery matters. But it should sit behind sleep, sensible training load, enough food, and good race recovery habits. This purple stuff is not magic. It is, at best, a possible cherry on top.

Read the deep dive below for a practical interpretation, actionable decisions, my thoughts, my Rating of Perceived scientific Enjoyment, the study details, full results, strengths, and limitations.

Running science research reviews for endurance runners

The deep dive

The details behind the headline result, including the practical meaning, full findings, limitations, and my interpretation.

Practical meaning

What does this research mean for runners and coaches?

This research suggests tart cherry juice may help selected recovery markers after exercise that causes muscle damage. For runners, that type of damage is most likely after long races, downhill running, hard hill sessions, heavy strength work, or unusually demanding training blocks.

But this is practical interpretation, not a direct study finding for every type of runner. The meta-analysis included trained athletes from mixed sports and exercise models. Some studies used running, but the review did not specifically test marathon runners, trail runners, or ultra runners as separate groups.

For runners

Tart cherry juice may be most relevant when you expect muscle damage and need to recover reasonably quickly. That might include a marathon, a downhill road race, a hilly trail race, or a hard back-to-back training weekend. The evidence does not show a clear reduction in soreness, so after Sunday's hard smash do not expect it to make your legs feel brand new by Tuesday.

For coaches

For coaches, advising tart cherry juice may be a reasonable optional tool when recovery between hard sessions matters. The strongest practical signal was for maximal voluntary contraction, which is a lab-based measure of how much force a muscle can produce. That is useful, but it is not the same as showing better running performance in the next session or race.

The coaching message is simple: consider it ONLY after the bigger recovery levers — sleep, rest, and nutrition — are already in place.

Practical decision

Should runners change anything?

Maybe. The evidence is not strong enough to say all runners should use tart cherry juice. But runners could test it when the recovery demand is unusually high.

Consider this if

  • You are doing a race or session likely to cause muscle damage.
  • You need to train or race again within the next few days.
  • You already sleep well, fuel properly, and manage training load sensibly.

Do not overreact if

  • Your main goal is reducing soreness. The review did not show a clear soreness benefit.
  • You expect tart cherry juice to rescue poor pacing, poor fuelling, or a heroic-but-silly training week.

A sensible next step

Try tart cherry juice in training before using it around an important race. Many studies used several days of tart cherry before exercise and continued it for several days after, but the review did not identify one best dose, product, or timing strategy.

TIP: Never make any major changes to your training or lifestyle habits based on the findings of one study, especially if the study is small or provides low-quality evidenceA low quality of evidence means that, in general, studies in this field have several limitations. This could be due to inconsistency in effects between studies, a large range of effect sizes between studies, and/or a high risk of bias (caused by inappropriate controls, a small number of studies, small numbers of participants, poor/absent randomisation processes, missing data, inappropriate methods/statistics). When the quality of evidence is low, there is more doubt and less confidence in the overall effect of an intervention, and future studies could easily change overall conclusions. The best way to improve the quality of evidence is for scientists to conduct large, well-controlled, high-quality randomised controlled trials.. Check whether other trials confirm the findings. If there is a meta-analysis on the topic, look at the effect sizeA standardised measure of the magnitude of an effect of an intervention. Unlike p-values, effect sizes show the size of the effect and how meaningful it might be. Common effect size measures include standardised mean difference (SMD), Cohen’s d, Hedges’ g, eta-squared, and correlation coefficients., the variability between studies, and the quality of evidenceCertainty of evidence tells us how confident we are that the published results accurately reflect the true effect. It’s based on factors like study design, risk of bias, consistency, directness, precision, and publication bias. High certainty means that the current evidence is so strong and consistent that future studies are unlikely to change conclusions. Whereas, low certainty means more doubt and less confidence, and that future studies could easily change current conclusions..

Expert interpretation

My thoughts

Running science from Thomas Solomon at Veohtu

This review is useful, but it is not a mic-drop moment for tart cherry juice.

The strongest signal was that tart cherry juice may help restore maximal voluntary contraction after muscle-damaging exercise. That matters because force loss after hard running can affect how quickly a runner feels ready to train again. But the evidence was messy. The studies were small, the protocols varied, and the certainty of evidence ranged from very low to moderate.

The soreness result is the awkward guest at the recovery party. Many runners care less about blood markers and more about whether stairs feel like a cruel architectural joke. This review did not show a clear pooled benefit for soreness, so the practical claim needs to stay modest.

Would I use tart cherry juice? Maybe, if I had a hard race, a short recovery window, and the basics already nailed. Would I tell every runner to use it? No. The force is mildly present with this one, but it is not lifting an X-wing out of the swamp.

And, consider this: If tart cherry juice helps only some recovery markers but does not reliably make runners feel less sore, how much should we care?

My Rating of Perceived scientific Enjoyment

owlRPsE: 6/10

I experienced moderate scientific enjoyment because the review was transparent, pre-registered, and useful, but the small mixed studies, variable methods, and low-certainty evidence kept the cherry juice a bit too tart.

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Read on for further details about the paper.

Research question

What did the researchers ask?

The authors aimed to test whether tart cherry juice helps trained athletes recover after exercise-induced muscle damage.

In plain English, the researchers wanted to know whether tart cherry juice improves recovery of muscle function, reduces soreness, or changes blood markers linked with muscle damage and inflammation after hard exercise.

Study design

What type of study was this?

This study was a systematic review and meta-analysis.

A systematic review collects the available studies on a topic using pre-planned methods. A meta-analysis pools the results to estimate the overall effect. This design can give a useful big-picture answer, but the answer depends on the quality and similarity of the included studies.

In this case, the design was appropriate. The main limitation is that the included studies were small and varied, so the pooled results need a cautious read.

Participants

Who took part?

The review included 19 studies with 385 participants. The participants were healthy, non-injured trained athletes or well-trained individuals aged 18 years or older. The included studies used 13 male-only groups, 1 female-only group, and 5 mixed-sex groups. The sports and exercise models varied, including running, team-sport exercise, resistance exercise, and isolated muscle-damaging exercise.

Methods

What did the researchers do?

Who? 385 trained athletes or well-trained individuals
What? Tart cherry juice, concentrate, powder, blend, or beverage
How long? Varied protocols, often several days before and after exercise

The researchers searched PubMed, ScienceDirect, Web of Science, and SPORTDiscus for studies published up to 25 December 2025.

The included studies tested tart cherry juice, tart cherry concentrate, tart cherry juice blends, tart cherry powder, or tart cherry beverages. The comparison groups took a placeboA dummy treatment that looks like the real one but has no active ingredient, or no active effect for the outcome being studied, and is used for fair comparison., another comparator, or no intervention.

The studies used different exercise protocols designed to cause muscle damage. Some involved whole-body exercise, such as running or team-sport exercise. Others used isolated eccentric exercise or resistance exercise. Eccentric exercise means the muscle lengthens while producing force, such as when your quadriceps brake your body during downhill running.

The tart cherry protocols also varied. Many studies used 1 or 2 servings per day. Tart cherry concentrate studies often used around 30 millilitres per serving. Larger-volume juice protocols often used 236 to 355 millilitres twice daily. Many multi-day protocols included 4 to 7 days before exercise and 2 to 4 days after exercise, but the review did not establish an ideal dose or timing plan.

The main outcomes included maximal voluntary contraction, countermovement jump, muscle soreness, creatine kinase, interleukin-6, C-reactive protein, tumour necrosis factor-alpha, and range of motion. In plain English, these outcomes covered muscle force, jumping performance, soreness, blood markers of muscle damage and inflammation, and joint movement.

Main findings

What did the study find?

Muscle force Improved up to 72 hours
Soreness No clear improvement
C-reactive protein Lower during early recovery

The clearest positive finding was for maximal voluntary contraction. This is a lab-based test of how much force a muscle can produce. Tart cherry juice improved maximal voluntary contraction recovery from immediately after exercise to 72 hours after exercise. The effects looked moderate to large, but the results varied a lot between studies. That weakens confidence in how predictable the benefit would be for a specific runner.

The 96-hour maximal voluntary contraction finding needs caution. The abstract reported an effect at 96 hours, but the main results section stated that the 96-hour data were not included in the meta-analysis because only 2 studies were available and heterogeneityHeterogeneity shows how much the results in different studies in a meta-analysis vary from each other. It is measured as the percentage of variation (the I2 value). A rule of thumb: if I2 is roughly 25%, that indicates low heterogeneity (good), 50% is moderate, and 75% indicates high heterogeneity (bad). High heterogeneity means there’s more variability in effects between studies and, therefore, a less precise overall effect estimate. was high. So the safer message is that the pooled evidence supports a benefit up to 72 hours, not a firm 96-hour effect.

Countermovement jump showed a benefit at 48 hours, but not immediately after exercise or at 24 hours. This 48-hour finding was sensitive to the removal of 1 study, meaning it became less convincing when 1 influential result was taken out. That makes the jumping result interesting, but not rock solid.

Muscle soreness did not clearly improve. Across the pooled results, tart cherry juice did not significantly reduce soreness after exercise. This is important for runners because soreness is often the thing people actually notice. Your blood markers may be having a nuanced conversation; your quads are just shouting.

Creatine kinase, interleukin-6, tumour necrosis factor-alpha, and range of motion did not show consistent pooled benefits. Creatine kinase is often used as a rough blood marker of muscle damage, although it can vary widely between people.

C-reactive protein was lower after tart cherry juice during early recovery. C-reactive protein is a blood marker linked with inflammation. This finding suggests tart cherry juice may affect some inflammatory responses, but the result at 24 and 48 hours became uncertain when 1 influential study was removed.

The certainty of evidence ranged from very low to moderate. Many of the outcomes that matter most for practical recovery were rated low or very low certainty. The authors concluded that tart cherry juice may support selected functional and inflammatory recovery markers after exercise-induced muscle damage, but the evidence was mixed and heterogeneous.

What helps my confidence in the findings?

The strengths

  • The authors used a systematic review and meta-analysis design.
  • The review followed PRISMA reportingPreferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) reporting is a set of guidelines that helps researchers clearly and completely report a systematic review or meta-analysis. It gives them a checklist and flow diagram to show what they searched, what they included, and how they made their decisions. This makes the review easier to understand, assess, and trust. guidance.
  • The protocol was pre-registered on the Open Science Framework.
  • Two authors independently extracted the data and assessed study quality.
  • The authors assessed certainty of evidence using GRADEGRADE, which stands for Grading of Recommendations Assessment, Development and Evaluation, is a standardised and structured approach used to assess the certainty of evidence in meta-analyses. It evaluates how “confident” researchers are in the results of studies and the recommendations that follow from them. GRADE rates a body of evidence as “high”, “moderate”, “low”, or “very low” certainty using a set of standardised criteria..

What limits my confidence in the findings?

The limitations

  • The included studies were small, with 7 to 54 participants per study.
  • Most studies used male-only groups, so the findings are less certain for female runners.
  • The exercise protocols, tart cherry products, doses, and timing strategies varied widely.
  • Many results showed high heterogeneityHeterogeneity shows how much the results in different studies in a meta-analysis vary from each other. It is measured as the percentage of variation (the I2 value). A rule of thumb: if I2 is roughly 25%, that indicates low heterogeneity (good), 50% is moderate, and 75% indicates high heterogeneity (bad). High heterogeneity means there’s more variability in effects between studies and, therefore, a less precise overall effect estimate., meaning the study findings did not line up neatly.
  • The review did not establish an ideal tart cherry dose, product, or timing strategy.
  • The outcomes were mostly short-term recovery markers, not race performance, injury risk, or long-term training adaptation.
  • External validity was limited, so the findings may not transfer cleanly to road running, trail running, or ultra-running practice.

Funding and conflicts

Who funded the study?

The authors stated that no sources of funding were used to assist in preparing the article.

The authors also declared no conflicts of interestA conflict of interest happens when a person or group has a personal, financial, or professional interest that could influence their judgment. It does not always mean they did something wrong. But it can create bias or make others question whether the decision or result is fully fair and trustworthy.. That lowers concern about obvious financial conflicts. However, the main concern is not commercial bias. It is the mixed quality, small size, and variable methods of the included studies.

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