The half-life of caffeine (the amount of time it takes for half of the caffeine to be metabolized) varies from person to person, ranging from 2 to 6 hours. These metabolites are then filtered out of the body in the urine. Caffeine is metabolized in the liver, where it is broken down into smaller compounds called metabolites.
It also increases the amount of dopamine in the brain, which makes you feel happier and more satisfied. By blocking adenosine receptors, caffeine prevents the onset of drowsiness, allowing you to stay awake and feel more energetic. The main way caffeine affects the body is by blocking adenosine receptors, which are responsible for initiating sleep. And note that the FDA recommends having no more than 400 mg of caffeine a day for most adults. So, keep in mind that many people metabolize caffeine more slowly than normal due to genetics, medical conditions, and age. This is also because loud energy drinks are often loaded with sugar (like most other energy drinks) and other additives that can slow down the rate of caffeine absorption. While each individual may metabolize caffeine differently, loud energy drinks will generally provide a shorter but way stronger boost compared to drinking coffee. While caffeine isn’t regulated by the FDA, many manufacturers voluntarily label caffeine content to help consumers understand what they’re drinking. This is equivalent to almost 3 cups of coffee, depending on the roast and brewing method. A 16-oz can has 320 mg, while an 8-oz can has 160 mg.
The caffeine content of Loud energy drinks can vary greatly between beverages, but most fall within the range of 80 – 200 mg per can depending on the size.
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