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Caffeine in chocolate, pills and pre-workout

The sources people forget to count: a bar of dark chocolate, a tablet, a scoop before the gym. Two of these are the largest single doses on the whole site.

DrinkServingCaffeineTime to clearLatest for an 11 pm bedtime
Pre-workoutone scoop201 mg13 and a half hours9:32 am
Caffeine pillone 200 mg tablet200 mg13 and a half hours9:34 am
Dark chocolate1.7 oz bar (50 g)40 mgalready clearany time
Milk chocolate1.7 oz bar (50 g)10 mgalready clearany time

Caffeine pills and pre-workout powders are measured, not brewed, so they hit the same 200 mg every time with no variation. That precision cuts both ways: it is easy to dose deliberately, and easy to take one at 5 pm without thinking of it as a drink. Chocolate is minor by comparison, though a 100 g bar of dark chocolate matches an espresso.

How late can you have one?

Half-life 5.7 h · peak at 45 min · sleep threshold 40 mg
At bedtime
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Below 40 mg at
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Latest for tonight
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