In comparison, Red Bull contains 14.2mg of caffeine in 1.5 fluid ounces, which is considerably less than Espresso. The high concentration of Espresso means that it contains about 77mg of caffeine in a single shot. As a word of caution, caffeine consumption should be restricted to no more than 400 mg per day. ![]() of Red Bull contains 14.2 mg of caffeine. shot of espresso contains approximately 77 mg of caffeine, while a 1.5-oz. Generally, Espresso has more caffeine than Red Bull does. Espresso contains more caffeine than Red Bull. However, some studies have turned up mixed results. Caffeine Content or Red Bull and Espresso. SummaryĬoffee could improve physical performance and endurance when consumed before exercising. However, results varied, so the researchers also noted that caffeine may affect people differently ( 33). One review of nine studies reported that drinking coffee before exercise improved people’s endurance and decreased their perceived exertion, compared with a control group ( 31).Īnother study in 126 older adults found that drinking coffee was associated with improved physical performance and faster gait speed, even after the researchers adjusted for factors like age, belly fat, and physical activity levels ( 32).Īdditionally, a large review reported that moderate caffeine consumption could slightly improve power output and time-trial completion time. Still, more research is needed.Ĭoffee is often used as an ergogenic aid by athletes looking to improve performance and increase energy levels ( 30).Īn ergogenic aid is also called a performance enhancer. SummaryĬoffee could be associated with a lower risk of death, regardless of other factors, like age, weight status, or alcohol consumption. However, more research is needed to determine whether this could also apply to humans. Interestingly, one test-tube study showed that coffee was able to significantly extend the life span of yeast by protecting against free radicals and DNA damage ( 29). Furthermore, drinking at least one cup of coffee per day was also associated with a lower risk of death from cancer ( 28). Similarly, another study in 1,567 people found that drinking caffeinated coffee was linked to a lower risk of death after 12 and 18 years of follow-up. Some research suggests that coffee could help extend longevity, thanks to its multitude of potential health benefits.įor example, one review of 40 studies concluded that drinking two to four cups of coffee daily was associated with a lower risk of death, regardless of factors like age, weight status, and alcohol consumption ( 27).
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