Does Green Coffee Exercise Performance Meta-Analysis work?

The current Migaku evidence database contains 2 reusable source documents for Green Coffee Exercise Performance Meta-Analysis. This answer focuses on strength of evidence and what the studies can or cannot prove. - CAF significantly improved HIIE performance ( g = 0.28, 95% CI = 0.14 to 0.43), concurrently elevating blood lactate ( g = 0.50, 95% CI = 0.22 to 0.79) and glucose ( g = 0.56, 95% CI = 0.17 to 0.96). [Peng Y (2026); evidence level 1] - Conclusion CAF ingestion significantly enhances HIIE performance, with ergogenic benefits observed across both sexes and trained athletes. [Peng Y (2026); evidence level 1] - Notably, meta-regression indicates that the rest/work ratio is a critical moderator of HIIE performance, with evidence of a nonlinear association. [Peng Y (2026); evidence level 1] - Objective This systematic review and meta-analysis evaluated the effects of caffeine (CAF) on high-intensity interval exercise (HIIE) performance and examined potential moderators. [Peng Y (2026); evidence level 1] - Results Low to moderate doses of caffeine intake improved general physical performance, including linear sprint speed (SMD: -0.27; 95% CI: -0.42- -0.13; p p p = 0.04), and agility, reflected by shorter test completion times (SMD: -0.25; 95% CI: -0.51-0.00; p = 0.05). [Liu J (2026); evidence level 1] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.