The Claim
Seven days of supplementation with 400 mg caffeine, 5 g creatine nitrate, or their combination has no statistically significant effect on resistance exercise performance or anaerobic power in resistance-trained male athletes, as measured by bench press, leg press, and Wingate test outcomes.
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, 5 g of creatine nitrate, or both for seven days does not improve strength or short-burst power in trained male athletes, based on measurements from bench press, leg press, and Wingate tests.
See the scientific wording
Seven days of supplementation with 400 mg caffeine, 5 g creatine nitrate, or their combination does not significantly improve resistance exercise performance or anaerobic power in resistance-trained male athletes, as measured by bench press, leg press, and Wingate test outcomes, despite observed mean changes that did not reach statistical significance.
Caffeine blocks a brain chemical that slows down nerve cells, making the brain more active. Creatine nitrate provides extra energy to brain cells and opens blood vessels in the brain, delivering more oxygen and fuel. Together, they make the brain work faster and more efficiently during tasks that require focus and quick thinking.
What the research says
1 studyThe study gave men caffeine and creatine nitrate for a week and checked if they could lift heavier or sprint faster—turns out, they couldn’t. So the supplements didn’t make them stronger or more powerful.
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.