Conclusion: Hence, caffeine may have utility as an ergogenic aid for endurance running events. More evidence is needed to establish the ergogenic effect of caffeine on endurance running in women or the best dose to maximize the ergogenic benefits of caffeine supplementation.
Does Caffeine help with energy?
Yes, for most people. 83% of 908 people who reported on Caffeine for energy say it improved. 10% noticed no change and 7% say it got worse. That is below the typical result for energy (87% across 95 options).
Energy: what users report
83%better908 reports · high confidence
750 better90 no change68 worse
Ranked #33 of 95 for energy.
What people say about Caffeine and energy
“Personally, I feel and function much better if I keep my caffeine intake very low to zero.”
“I cut down my caffeine content considerably about 6 years ago. I went from drinking 2 cups of coffee a day to 2 cups of tea... My anxiety decreased considerably and my heart palpitations almost completely went away.”
“I have a love hate relationship with caffeine...if I drink any past 10am it can effect my sleep.”
“I no longer have any anxiety or existential or suicidal thoughts, and I am much happier and outgoing and social.”
What the research says
AResearch: Strong680 meta-analyses · 2,072 trials on PubMed
Nutrients · 2022
Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-AnalysisSports Health · 2021
Energy Drinks and Their Adverse Health Effects: A Systematic Review and Meta-analysisConclusion: The authors recommend that individuals avoid frequent energy drink consumption (5-7 energy drinks/week) and avoid co-consumption with alcohol; increased regulatory standards should be placed in the sale of energy drinks, particularly with regard to the pediatric population.
Addiction · 2024
Prevalence of energy drink consumption world-wide: A systematic review and meta-analysisSide effects people mention
jitteriness 203anxiety 166insomnia 83headache 67tolerance 46
What else is Caffeine used for?
Information only — not medical advice. How we count