PlainPill
SubstanceFocusAnxietyEnergy

Red Bull

People mainly take Red Bull for focus, anxiety, energy. Based on 6 first-hand reports and 20 meta-analyses & systematic reviews in the medical literature. Ranked #905 of 1,974 overall.

Compare with…Alternatives for focus
19
User score
Mixed
33% positive50% mixed0% negative17% unclear

Of reports that state an outcome, 40% are positive.

Clinical research
AStrong research base
20
meta-analyses
29
RCTs
213
papers

What Red Bull does, according to users

Of the people who reported each effect, the share who said it got better.

Focus100% of 1Anxiety100% of 1Energy100% of 1
betterno changeworse

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

AStrong research base

3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.

Sports Med · 2025 · Meta-analysis / systematic review
Which Training Intensity Distribution Intervention will Produce the Greatest Improvements in Maximal Oxygen Uptake and Time-Trial Performance in Endurance Athletes? A Systematic Review and Network Meta-analysis of Individual Participant Data

Conclusion: Our results indicate that the adaptations to VO2max following different TID interventions are dependent on performance level. Athletes at a more competitive level may benefit from a POL TID intervention and recreational athletes from a PYR TID intervention.

PubMed 39888556 ↗
Eur J Paediatr Neurol · 2022 · Meta-analysis / systematic review
Vaccination and childhood epilepsies

Conclusion: There is no evidence that vaccinations cause epilepsy in healthy populations. Vaccinations do not cause epileptic encephalopathies but may be non-specific triggers to seizures in underlying structural or genetic etiologies. The first seizure in DS may be earlier in vaccinated versus non-vaccinated patients, but developmental outcome is similar in both groups. Children with a personal or family history of FS or epilepsy should receive all routine vaccinations. This recommendation includes DS. The known risks of the infectious diseases prevented by immunization are well established. Vaccination

PubMed 34922162 ↗

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

25 g sugaroccasional
dailyas reported
50-80 mgas reported
80mgas reported

Reported side effects

How often each side effect came up across all reports.

caffeine dependence ×1

What users say

Verbatim quotes, shortened only — each links to the original discussion.

“A red bull is 25 grams of sugar, which still is far too high, but I feel like if it's a once in a while thing it won't hurt too much.”
Source discussion ↗
“Red Bull gives me a different focus that is awesome and I don't get the same thing with coffee.”
Source discussion ↗
“Out of all the energy drinks, Red Bull seems to be the only one that actually makes me feel alright.”
Source discussion ↗
Top discussions (3)

Other options for focus

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Mostly positiveBResearch: Moderate
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Creatine Monohydrate
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Semaglutide
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67% report better focus
Mostly positiveAResearch: Strong
Intermittent Fasting
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63
94% report better focus
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Magnesium Glycinate
Supplement · 910 reports
63
70% report better focus
Mostly positiveCResearch: Limited

User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate