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Head-to-head evidence comparison — which supplement is right for you?
Beta-Alanine vs Citrulline Malate: Beta-Alanine has the stronger overall evidence (7.5 vs 6/10); they're alternatives for athletic performance — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Beta-Alanine wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
5 of 7 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
2 of 3 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Beta-Alanine and Citrulline Malate have evidence — compare verdict strength side-by-side.
3.2-6.4g daily
Anytime - timing doesn't affect carnosine buildup
CarnoSyn® sustained-release tablets
6-8g citrulline malate pre-workout
30-60 minutes before exercise, Empty stomach or with light carbs
Citrulline Malate 2:1 powder
2-4 weeks
2-4 weeks
15-30 minutes post-dose
Acute (within session)
Acute
24-48 hours
Acute
Beta-alanine supplementation and exercise performance: A meta-analysis
British Journal of Sports Medicine (2017) · Meta analysis · n=1461
Significant improvement in exercise capacity
ISSN position stand: Beta-alanine
Journal of the International Society of Sports Nutrition (2015) · Review
Increases muscle carnosine by 40-80%
Effects of different dietary supplements on athletic performance in soccer players: a systematic review and network meta-analysis
Journal of the International Society of Sports Nutrition (2025) · Meta analysis · n=1425
Kaempferia parviflora (SMD: 0.46, small) was associated with a significant effect on enhancing muscular strength.
Acute Effect of Citrulline Malate on Repetition Performance During Strength Training: A Systematic Review and Meta-Analysis
International Journal of Sport Nutrition and Exercise Metabolism (2021) · Meta analysis · n=137
Meta-analysis of 8 double-blind placebo-controlled studies with 137 participants, most of them strength-trained men.
Impact of Chronic Nitrate and Citrulline Malate Supplementation on Performance and Recovery in Spanish Professional Female Soccer Players: A Randomized Controlled Trial
Nutrients (2025) · Rct · n=34
Plasma NO3- concentrations significantly increased from baseline in the NIT + CM group and remained elevated 24 h after the final dose, confirming sustained systemic exposure.
Effects of Acute Citrulline Malate Supplementation on CrossFit(®) Exercise Performance: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Study
Nutrients (2024) · Crossover · n=21
The results indicated no significant difference in the number of rounds completed between the CM and placebo conditions (13.5 ± 5.2 vs. 13.8 ± 6.7 rounds, respectively; p = 0.587).
The two points come from two separate small placebo-controlled trials, and neither compared doses. At 4.8 g a day for 30 days, 8 resistance-trained men completed 22% more squat repetitions than with placebo (PMID 18548362). At 6.4 g a day for 4 weeks, 23 highly-trained judo athletes made more throws in a judo fitness test, with no change with placebo (PMID 27601217). The outcomes differ, so the equal heights mean only that both doses helped, not that 6.4 g adds nothing over 4.8 g. A 7-day trial in 11 World Tour cyclists at 20 g a day (four 5 g servings) improved uphill time-trial power (PMID 39226288), but that short loading protocol is not comparable with weeks of daily dosing and is not plotted. Neither plotted trial reports side effects in its abstract, so no ceiling is given. Reviews put the effective range at 4 to 6.4 g a day (PMID 26175657, PMID 40995761) without comparing doses within a trial.
At 6 g, a single dose before resistance exercise did not change soreness over 72 hours in a double-blind crossover of 9 untrained men (PMID 29057836). At 8 g the three trials disagree. In a crossover of 41 men, soreness was 40% lower at 24 and 48 hours, and 14.63% reported stomach discomfort (PMID 20386132). In 19 resistance-trained adults doing German Volume Training, total soreness was lower than on placebo (PMID 30458655). In recreationally active adults on an isokinetic version of the same protocol, soreness was higher with citrulline malate over 72 hours (PMID 30097067). The effect at 8 g is set low for that reason. No trial compared doses. A meta-analysis of 13 trials, where 8 g was the most frequent dose, found less soreness at 24 hours but not at 48 or 72 hours (PMID 33308806).
AI-estimated from published studies. Interpret as directional guidance.
Beta-Alanine has a higher evidence score (7.5/10 vs 6/10) and wins in 2 of 3 categories.
For athletic performance, Beta-Alanine has a higher relevance score (95 vs 85).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.