The Claim
Caffeine ingestion at a dose of 300 mg improves short-term verbal recall by approximately 9.5% in young, low-caffeine males during morning testing as measured by the Rey Auditory Verbal Learning Test, but does not consistently enhance attention or executive function.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In young men who rarely consume caffeine, taking 300 mg of caffeine in the morning improves memory recall on a verbal learning test by about 9.5%, but does not reliably improve attention or decision-making skills.
See the scientific wording
Caffeine ingestion (300 mg) improves short-term verbal recall by approximately 9.5% in young, low-caffeine males during morning testing, as measured by the Rey Auditory Verbal Learning Test, but does not consistently enhance attention or executive function.
Caffeine blocks a natural brain chemical that slows down nerve cells, which lets key memory areas work harder and store words better, without making focus or decision-making stronger.
What the research says
1 studyThis study found that young men who don’t usually drink caffeine remembered more words from a list after taking a 300 mg caffeine pill in the morning — just like the claim says. But their focus and decision-making didn’t get better, which also matches.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.