Caffeine as a Testosterone Booster? 70% Increase in the Big T Without Concomitant Performance Benefits, Though
|I am curious if caffeine gum producers will start marketing them as testosterone boosters, now. People's willingness to waste money on temporary increases of a figure on their labwork is amazing, after all.|
With that being said, I will, obviously, make an exception from the "ignore the monthly T-booster study"-rule and intend to cover the results of a recent study by scientists from the Leeds Trinity University. Why is that? Well, it's about a testosterone booster most of you are already using, anyway.
|Figure 1: We do have good evidence that high dose caffeine can be too much of a good thing... at least if you measure "good thing" via the testosterone to cortisol ratio which will decrease after 800 mg by 14%; ± 21% (Beaven. 2008).|
I am not sure if Reynolds et al. were aware of Beaven's previously discussed paper (see Figure 1), but with 400mg per gum, the UK-based scientists nailed what's probably the optimal dosage.
In their study, the scientists aimed at investigating the use of caffeinated gums during half-time in team on sports physiological (blood lactate, salivary hormone concentrations) and performance (repeated sprints, cognitive function) parameters.
|Yes, I do suggest that it may be beneficial to drink these two and another two cups of coffee w/ lots of sugar after your workout - if you are an athlete, at least | more.|
" Following pre-exercise measurements , players chewed a placebo (PL) gum for five min before a standardized warm-up and completing repeated sprint testing (RSSA1). Thereafter, during a 15 min simulated half-time period, players chewed either caffeine (CAF: 400 mg; 4.1 ± 0.5 mg·kg-1) or PL gum for five min before completing a second repeated sprint test (RSSA2)" (Reynolds 2017).Much to their own surprise, the authors did not record significant effects on either reaction time or exercise performance (40m sprint times).
in enough detail in my article series on building muscle; so I'll simply refer you to the corresponding article | Comment!References:
- Beaven, C. Martyn, et al. "Dose effect of caffeine on testosterone and cortisol responses to resistance exercise." International journal of sport nutrition and exercise metabolism 18.2 (2008): 131.
- Russell, M., et al. "The Physiological and Performance Effects of Caffeine Gum Consumed During A Simulated Half-Time By Professional Academy Rugby Union Players." The Journal of Strength & Conditioning Research (2017).
- Schnuck, J.K., Gould, L.M., Parry, H.A. et al. "Metabolic effects of physiological levels of caffeine in myotubes." J Physiol Biochem (2017). https://doi.org/10.1007/s13105-017-0601-1