Citicoline shows up in pre-workout and sports-nutrition formulas alongside ingredients with genuine athletic-performance research behind them. That placement can create the impression citicoline itself has been tested for physical performance. It hasn’t, at least not in the way strength, power, or endurance outcomes are usually measured. This article is direct about that gap and about where the confusion with alpha-GPC comes from.
Nothing here constitutes medical advice. Citicoline has not been approved by the FDA to diagnose, treat, cure, or prevent any disease.
Key Takeaways
- No published trial has tested citicoline alone for physical performance outcomes: strength, power, hypertrophy, or endurance.
- The citicoline trial record is built on cognitive outcomes, attention, reaction time, processing speed, not physical output measures.
- A citicoline-caffeine beverage trial improved reaction time, maze-learning speed, and accuracy in healthy adults, which is a cognitive rather than physical finding [1].
- The choline-donor compound with actual randomized physical-performance data is alpha-GPC, used as part of a multi-ingredient combination in a 2023 cyclist trial, not citicoline [2].
- Sports-nutrition formulas listing citicoline are borrowing credibility from a different, related compound’s performance data.
Why Citicoline Shows Up in Sports Nutrition
Citicoline is a choline donor, and choline-donor compounds as a category have real athletic-performance research behind at least one member, alpha-GPC. Formulators grouping citicoline into pre-workout blends are likely leaning on that category-level association, plus citicoline’s separate cognitive-focus reputation, rather than on citicoline-specific physical-performance data, because that data doesn’t currently exist.
What the Citicoline Trial Record Actually Covers
The strongest citicoline human evidence is cognitive: a randomized, placebo-controlled trial of a citicoline-caffeine beverage found significantly faster reaction times, faster maze-learning, fewer go/no-go errors, and better information-processing accuracy in healthy adults compared to placebo [1]. None of these are physical-performance metrics. No citicoline trial has measured 1RM strength, vertical jump, sprint time, VO2max, or time-to-fatigue.
The Alpha-GPC Study Gets Mistaken for Citicoline Evidence
The relevant physical-performance trial that does exist used a different compound. A 2023 randomized crossover trial gave 30 trained male cyclists a supplement combining 8g BCAAs, 6g L-citrulline, and 300mg alpha-GPC, and found an 11% increase in 20km time-trial peak power and a 36% increase in high-intensity time-to-fatigue compared to placebo [2]. Two important caveats: this tested a three-ingredient combination, not alpha-GPC in isolation, so alpha-GPC’s individual contribution isn’t isolated either. And alpha-GPC is a chemically distinct choline-donor compound from citicoline; a result for one does not automatically transfer to the other.
A Plausible, Unproven Hypothesis for Athletes
It’s reasonable to hypothesize that citicoline’s cognitive benefits, faster reaction time and fewer attentional errors, could help the decision-making side of sports performance: reacting to an opponent, tracking a ball, maintaining focus late in a match. That’s a coherent hypothesis built on real cognitive trial data, but no study has actually tested citicoline in an athletic or sports-specific context, so it remains an extrapolation rather than a finding.
The Bottom Line for Athletes
Athletes considering citicoline should be clear-eyed: it is not a demonstrated strength, power, or endurance supplement, and its inclusion in sports-nutrition products doesn’t come with the same trial support that alpha-GPC combination products can point to. If the goal is physical performance specifically, the current evidence doesn’t support citicoline as the tool for that. If the goal is sustained attention and reaction time during training or competition, citicoline’s general cognitive trial data is at least relevant, even though it hasn’t been tested in athletes directly.
Frequently Asked Questions
Has citicoline itself been tested for physical athletic performance (strength, power, endurance)?
No. There is no published clinical trial testing citicoline alone on strength, power output, muscle hypertrophy, or endurance outcomes. The citicoline trial record focuses on cognitive measures, attention, reaction time, processing speed, not physical performance metrics like 1RM, time-to-fatigue, or VO2max.
Why do pre-workout products list citicoline or CDP-choline if it hasn’t been tested for physical performance?
Likely because of its cognitive effects (focus, reaction time) rather than direct physical performance data, and because it’s grouped in consumers’ minds with other choline-donor ingredients that have been tested for exercise. That grouping is imprecise: the choline compound with actual randomized physical-performance trial data is alpha-GPC, not citicoline.
What does the alpha-GPC exercise trial actually show, and does it apply to citicoline?
A 2023 randomized crossover trial in 30 trained male cyclists found a supplement combining BCAAs, L-citrulline, and 300mg alpha-GPC produced an 11% increase in cycling time-trial peak power and a 36% increase in time-to-fatigue during high-intensity endurance cycling compared to placebo [2]. This is a multi-ingredient combination product, not alpha-GPC alone, and it used alpha-GPC, a different choline-donor compound from citicoline. The result does not transfer to citicoline by association.
If not physical performance, what could citicoline plausibly offer an athlete?
The cognitive trial evidence, faster reaction time, fewer errors under sustained attention, better processing speed from a citicoline-caffeine beverage trial [1], could theoretically support the decision-making and reaction-time components of sports performance (reading a play, reacting to an opponent), separate from raw strength or endurance output. That’s a reasonable hypothesis, not a demonstrated finding, since no trial has tested it in an athletic context specifically.
Should an athlete take citicoline expecting a strength or endurance boost?
Based on the current trial record, no. There is no direct evidence citicoline improves strength, power, or endurance. Athletes interested in evidence-backed choline-donor supplementation for physical performance outcomes should be aware that the relevant trial data belongs to alpha-GPC as part of a combination product, not to citicoline used alone.
References
- Bruce SE et al. Improvements in concentration, working memory and sustained attention following consumption of a natural citicoline-caffeine beverage. International Journal of Food Sciences and Nutrition (2014). PMID 25046515
- Harrington RN et al. Effects of branched chain amino acids, l-citrulline, and alpha-glycerylphosphorylcholine supplementation on exercise performance in trained cyclists: a randomized crossover trial. Journal of the International Society of Sports Nutrition (2023). PMID 37229544
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for informational purposes only and is not a substitute for professional medical advice. As an Amazon Associate we earn from qualifying purchases.
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Content is for informational purposes only and is not medical advice; consult a qualified healthcare provider before starting any supplement. As an Amazon Associate we earn from qualifying purchases.
