How long does it take for a caffeinated beverage to kick in?
Caffeine is almost fully absorbed within 45min of consumption and takes between 25 and 120 minutes after consumption to be circulating in our blood stream.
This wide range is due to various factors. For example, the reaction to caffeine may differ from individual to individual due to factors such as genetics and the time the individual takes for the caffeine to move out of your stomach and into the next part of your gut.
9 Views