Table of Contents
Key Takeaway
Creatine and beetroot juice aren’t rivals. They’re complementary tools. A 2026 randomized crossover trial found that creatine boosted raw strength, while beetroot juice improved muscle oxygenation, movement speed, and cardiovascular recovery. Your training goal determines the better pick.
Evidence Level: Moderate. Based on a single randomized crossover trial; creatine has extensive prior RCT evidence, beetroot juice has growing but smaller evidence base.
Effect size: 2.82. In exercise science, anything above 0.8 is considered large. That’s how much beetroot juice improved bar speed during bench press compared to placebo, in the first trial to test beetroot juice vs creatine head-to-head for resistance training.
Creatine, meanwhile, posted its own impressive number: an effect size of 1.33 for additional reps at 80% of max. Different metrics. Different strengths. And a surprisingly clear answer to a question gym-goers have been arguing about for years.
The Study
| Item | Detail |
|---|---|
| Title | Beetroot juice or creatine: which yields greater short-term benefits for resistance training? |
| Authors | Ammar A, Salem A, Kerkeni M, et al. |
| Published | International Journal of Food Sciences and Nutrition, February 2026 |
| Study Type | Randomized controlled crossover trial |
| Participants | 11 novice resistance-trained men |
| Design | Each participant tried creatine, beetroot juice, and placebo (own control) |
| Protocol | ~72 hours supplementation before testing |
| Exercises | Bench press and back squat at 60-80% of max |
| DOI | 10.1080/09637486.2026.2625827 |
The crossover design is a real strength. Each person served as their own control, eliminating the noise that individual genetic variation, training history, and diet normally create.
The Case for Creatine
Creatine won the category that matters most to strength athletes: more reps at heavy loads.
At 80% of one-rep max on bench press, participants on creatine pushed out significantly more repetitions than on placebo. This isn’t a surprise. It’s a confirmation. A 2018 meta-analysis of 49 studies already established creatine’s role in enhancing strength and power output, and the ISSN position stand calls creatine monohydrate the most effective legal supplement for high-intensity exercise.
How it works: Your muscles store creatine as phosphocreatine, a rapid-fire energy source. During heavy lifting, your body burns through ATP in seconds. Phosphocreatine donates a phosphate group to regenerate ATP almost instantly. More stored creatine means more reps before the tank hits empty.
The practical case: 3-5 grams of creatine monohydrate per day. About $10-15 per month. Thousands of studies supporting it. No other legal supplement has this depth of evidence for raw strength.
The trade-off: Creatine causes 1-2 kg of water weight gain. It didn’t improve movement speed or muscle oxygenation in this trial. And its benefits are specific to short, maximal efforts; it does very little for endurance.
The Case for Beetroot Juice
Beetroot juice swept nearly every metric that wasn’t pure strength, and the margins were enormous.
| Outcome | Effect Size | What It Means |
|---|---|---|
| Movement velocity | d = 1.40-2.82 | Significantly faster bar speed |
| Muscle oxygen saturation | d = 1.74-2.90 | Better oxygen delivery to working muscles |
| Peak heart rate reduction | d = 0.83-2.74 | Lower cardiovascular stress during sets |
| Autonomic recovery (HRV) | d = 0.91-2.99 | Faster nervous system recovery between sets |
Several of those effect sizes exceed 2.0. In exercise science, that’s not just large. It’s extraordinary for a dietary intervention.
How it works: Beetroot juice is rich in dietary nitrate. Bacteria in your mouth convert nitrate to nitrite, which becomes nitric oxide in your bloodstream. Nitric oxide dilates blood vessels, improving blood flow and oxygen delivery. It’s like widening the highway to your muscles.
The practical case: ~500 mg nitrate (about 70 mL of concentrated beetroot juice), taken 2-3 hours before exercise. A greater proportion of participants responded to beetroot juice than to creatine; more people got measurable individual benefits.
The trade-off: More expensive (~$40-60/month for daily concentrated shots). Less evidence depth than creatine. And one practical note worth remembering: don’t use antibacterial mouthwash before your dose. It kills the oral bacteria that start the nitrate-to-nitric-oxide conversion.
Beetroot Juice vs Creatine: It Depends on What You’re Training For
| Your Goal | Better Pick | Why |
|---|---|---|
| Max strength / powerlifting | Creatine | More reps at heavy loads; unmatched evidence base |
| Endurance / circuit training | Beetroot juice | Superior oxygenation, lower heart rate, faster recovery |
| General fitness | Both | Different mechanisms, no known negative interactions |
| Budget-conscious | Creatine | ~$10-15/mo vs. $40-60/mo |
| Avoiding water weight | Beetroot juice | No water retention effect |
Since they target entirely different systems (phosphocreatine energy vs. nitric oxide vasodilation) there’s no reason they’d interfere with each other. No RCT has tested the combination yet, but the biology suggests additive benefits. There’s another reason to train hard regardless of which supplement you pick: higher training intensity directly reshapes your gut bacteria in ways that boost recovery and reduce inflammation. And adequate carb intake ensures you can sustain the training volume that drives that stimulus.
FAQ
Can beetroot juice replace creatine for weight training?
Not for maximal strength. This trial showed creatine is specifically superior for squeezing out more reps at heavy loads. Beetroot juice excels in speed, oxygenation, and recovery. They target different energy systems and complement each other rather than substitute.
How much creatine should I take?
3-5 grams of creatine monohydrate daily. Loading phases (20 g/day for a week) saturate stores faster, but the standard dose reaches the same levels within a month. Monohydrate is the only form worth buying; fancier versions (hydrochloride, ethyl ester, buffered) have no proven advantages.
Is creatine safe long-term?
Yes. The International Society of Sports Nutrition confirms safety for both short- and long-term use. Studies have tested up to 30 g/day for 5 years without adverse effects in healthy people. A 2025 safety review in Frontiers in Nutrition reaffirmed this. Consult your doctor if you have pre-existing kidney conditions.
Does beetroot juice turn your urine red?
It can. About 10-14% of people experience beeturia, or pink or red urine after consuming beets. It’s completely harmless and caused by betalain pigments passing through. Don’t mistake it for blood.
Related Reading
- Carbs and Muscle Growth: What a 2026 Meta-Analysis Found
- Fitness Wearables 2026: From Step Tracking to AI Coaching
- Exercise and Gut Bacteria: What Training Intensity Actually Does
- Best Exercise for Belly Fat: 33-Trial Ranking Revealed
- Resistance Training for Back Pain: What 10 RCTs Found
Sources
- Ammar A et al. (2026) — Beetroot juice vs. creatine RCT, Int J Food Sci Nutr — Primary source; crossover trial
- Kreider RB et al. (2017) — ISSN position stand on creatine, JISSN — Safety and efficacy review
- Dominguez R et al. (2017) — Beetroot juice and endurance, Nutrients — 23-study systematic review
- Antonio J et al. (2024) — Top 5 sport supplements review, Nutrients — Both ranked
- Longobardi I et al. (2025) — Creatine safety review, Frontiers in Nutrition — Most recent safety data