The Claim
Caffeine supplementation at 400 mg/day for 7 days does not significantly improve cognitive interference performance in resistance-trained male athletes and is less effective than caffeine combined with creatine nitrate.
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.
Taking 400 mg of caffeine daily for seven days does not improve the ability to ignore distractions during cognitive tasks in male athletes who train with weights, and it performs worse than when caffeine is taken with creatine nitrate.
See the scientific wording
Caffeine alone (400 mg/day for 7 days) does not significantly improve cognitive interference performance in resistance-trained male athletes, despite its known effects on attention and alertness, and is less effective than the combination with creatine nitrate.
Caffeine blocks a brain chemical that slows down nerve cells, making them more active. Creatine nitrate provides extra energy to brain cells and opens blood vessels to deliver more oxygen and fuel. Together, they make the brain's decision-making center work faster and more efficiently when dealing with distractions.
What the research says
1 studyThe study found that taking 400 mg of caffeine alone for a week didn’t help resistance-trained men focus better under distractions, but taking caffeine with creatine nitrate did help. So, caffeine by itself isn’t enough — it needs help from creatine nitrate.
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.