Possible Interaction: Caffeine and Taurine

“CONCLUSIONS A concomitant ingestion of ca feine an d tau rine ca n induce a transient choroidal thinning that is more marked in eyes with thick choroids.”

“Consumption of a caffeine and taurine containing ED results in a subtle, but significant increase of myocardial contractility 1 h after consumption.”

“We hypothesized that the combined effect of caffeine and other substances included in energy drinks (i.e. taurine ) can trigger the onset of arrhythmia.”

“Conclusions Taurine ingestion is detrimental to maximal voluntary muscle power and both maximal isokinetic and isometric peak torque in noncaffeine consumers, whereas taurine ingestion in caffeine-deprived caffeine consumers improves maximal voluntary muscle power but has no effect on other aspects of contractile performance.”

“Results In response … isokinetic contraction, taurine treatment … the noncaffeine consumers resulted in a significant fall in first (−16.1%; P = 0.013) and best peak torque (−5.0%; P = ….016) as well as in first (−17.7%; P = 0.015) and best power output (−8.0%; P = 0.008).”

“Magnitude-based inferences revealed likely, trivial differences in peak power and unclear, trivial inter-sprint fatigue index after ingestion of the caffeine and taurine supplement.”

“Exposure to a combination of caffeine and taurine also induced a statistically significant increase in ICF (124 ± 4%, p < 0.01) and a subtle reduction in CD (92 ± 1.4%, p < 0.01).”

“The increase in ICF achieved by administration of caffeine was similar to that achieved by … both caffeine and taurine (p = 0.2).The relative ICF levels achieved by administration of caffeine and … taurine and caffeine, respectively, were both significantly higher (p < … the ICF resulting from exposure to taurine only.”

“Although these interactions remain to be further examined in humans, the physiological functions of taurine appear to be inconsistent with the adverse cardiovascular symptoms associated with excessive consumption of caffeine –taurine containing beverages.”

“However, based on this review regarding possible interactions between caffeine and taurine, we conclude that taurine should neutralize several untoward effects of caffeine excess.”

“ Taurine reversed the effects of caffeine on vigor and caffeine-withdrawal symptoms.”

“The consumption of this mixture is extremely popular in adolescents, because the joint effects of caffeine and taurine reduce the effect of alcohol.”

“The combination of caffeine and taurine had no effect on short term memory, but did cause a significant decline in heart rate and an increase in mean arterial blood pressure.”

“The heart rate decline may have been caused by pressure-induced bradycardia that was triggered by caffeine ingestion and perhaps enhanced by the actions of taurine.”