Whats the actual deal with L-theanine and caffeine for endurance performance - are all these studies just cherry-picking data to make this combo sound more magical than it actually is, or is there some real science backing up the claims that its a game-changer for cyclists.
It seems like every other supplement brand is now slapping L-theanine and caffeine together in their endurance products, but when you dig into the research, its all over the place - some studies show a marginal improvement in performance, while others show nothing.
And whats with the dosing - is it really as simple as just taking the standard 200mg of caffeine with 100mg of L-theanine, or do you need to be more nuanced with your approach.
Lets get real here - if this combo is actually worth using, whats the optimal dosing strategy, and what kind of performance gains can we actually expect.
And while were on the topic, are there any potential downsides to using L-theanine and caffeine together - can it actually decrease performance in certain situations, or are there any long-term health risks we should be aware of.