Evidence supporting the use of: 1,3,7-Trimethylpurine-2,6-dione
For the health condition: Body Building

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

1,3,7-Trimethylpurine-2,6-dione is the chemical name for caffeine. There is scientific evidence supporting caffeine’s use in bodybuilding and athletic performance. Multiple studies have shown that caffeine acts as a central nervous system stimulant, which can increase alertness, reduce perceived effort, and enhance endurance performance. In the context of bodybuilding, caffeine has been found to improve focus, increase energy levels, and potentially enhance strength and power output during resistance training sessions.

Caffeine’s ergogenic effects are attributed to its antagonism of adenosine receptors, leading to increased neurotransmitter release (such as dopamine and norepinephrine). This can result in reduced fatigue and improved physical performance. Research has demonstrated moderate improvements in muscular endurance and slight but significant increases in maximal strength in some populations. Additionally, caffeine may promote increased thermogenesis and lipolysis, supporting fat loss—another reason it is included in many bodybuilding supplements.

However, the magnitude of these effects varies among individuals due to genetic differences in caffeine metabolism and tolerance. Moreover, excessive use can lead to side effects such as jitteriness, anxiety, and disrupted sleep, which may negatively impact recovery and performance. Overall, the use of caffeine in bodybuilding is supported by scientific literature, but it is not a miracle agent and should be used judiciously.

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