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Caffeine and Beta-Alanine: study protocols

9 study groups took Caffeine together with Beta-Alanine. These are the doses the studies gave. They are not a recommendation.

Caffeine: what the research found →

Dose per serving from research: Caffeine

9 study groups in 7 studies say how much Caffeine participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 100 mg to 250 mg, 56% of 9 study groups.

Daily doseStudy groups
100 mg to 250 mg
5
250 mg to 500 mg
4

Dose per serving from research: Beta-Alanine

8 study groups in 6 studies say how much Beta-Alanine participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 2.5 g to 5 g, 75% of 8 study groups.

Daily doseStudy groups
1 g to 2.5 g
2
2.5 g to 5 g
6

Commonly used together

8 of 9 study groups took Caffeine and Beta-Alanine with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken withStudy groups
Niacin
6
Vitamin B12
6
Folic Acid
5
L-Tyrosine
5

9 study groups

Study
Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
2024 · C4E (C4 Energy drink) · Healthy, physically active men aged 20–35 years
200 mg—1 day30
The Effect of a Multi-Ingredient Pre-Workout Supplement on Time to Fatigue in NCAA Division I Cross-Country Athletes
2021 · MIPS-PE condition · NCAA Division I cross-country athletes, male and female, aged about 20 years, without the cardiovascular, pulmonary, or metabolic diseases listed as exclusions
217 mg3.2 g1 day11
Effects of ingesting a pre-workout dietary supplement with and without synephrine for 8 weeks on training adaptations in resistance-trained males
2017 · PWS · Apparently healthy, resistance-trained males; mean age about 21 years
284 mg3 g8 weeks27
Effects of ingesting a pre-workout dietary supplement with and without synephrine for 8 weeks on training adaptations in resistance-trained males
2017 · PWS + S · Apparently healthy, resistance-trained males; mean age about 22 years
284 mg3 g8 weeks26
Effects of acute ingestion of a pre-workout dietary supplement with and without p-synephrine on resting energy expenditure, cognitive function and exercise performance
2017 · PWS · Resistance-trained healthy adults; 20 men and 5 women, mean age 21.7 years
284 mg3 g1 day25
Effects of acute ingestion of a pre-workout dietary supplement with and without p-synephrine on resting energy expenditure, cognitive function and exercise performance
2017 · PWS + S · Resistance-trained healthy adults; 20 men and 5 women, mean age 21.7 years
284 mg3 g1 day25
Short-Term Effects of a Ready-to-Drink Pre-Workout Beverage on Exercise Performance and Recovery
2017 · RTD · Recreationally active men and women aged 18–40 years with at least six months of resistance-training experience
200 mg2.1 g7 days25
Acute Effect of Caffeine-Based Multi-Ingredient Supplement on Reactive Agility and Jump Height in Recreational Handball Players
2022 · multi-ingredient supplement (MS) · Recreationally trained male handball players; mean age 23.8 ± 1.4 years; healthy
200 mg2 g1 day24
Impact of Beta-Alanine, Caffeine, and Their Combination on Intraocular Pressure and Ocular Perfusion Pressure at Rest and After Resistance Training
2025 · caffeine + beta-alanine · Young men, mean age 23.4 ± 4.5 years; no condition stated
200 mg3 g1 day20
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