Latest evidence update: 2026-05-21
Caffeine-containing energy drinks did not significantly improve sprinting performance.
Caffeine-containing energy drinks improved endurance exercise test performance.
Caffeine dosage was not significantly associated with improved physical performance from energy drink ingestion.
Caffeine ingestion has a significant ergogenic effect on upper-body muscular strength in women.
Caffeine ingestion has a significant ergogenic effect on muscular endurance in women.
ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.