Caffeine: The Raw Facts
- 90% of Americans consume it in some form every day. In fact, over 450,000,000 cups of coffee are consumed in the US daily.
- Caffeine is an alkaloid that occurs naturally in over 60 different plants, including coffee beans, tea, cocoa, and even some nuts.
- Drip coffee typically contains more caffeine than espresso.
- Darker roasted coffees tend to have less caffeine than lighter ones.
- A caffeine overdose can be lethal! The lethal dose of caffeine in a human is about 150-200 mg per kilogram of body weight. That's 100 cups of coffee in 4 hours!
- First isolated in coffee in 1820, caffeine is the most widely taken legal drug worldwide.
- Caffeine is extracted by pressure cooking beans and leaves with CO2 to produce the drug in powder form.
- Caffeine works by increasing your dopamine levels, which makes you feel happier, and blocking adenosine receptors, which stops you from getting drowsy.
- Caffeine works the same part of the brain as cocaine, amphetamines and heroin. It just has much milder effects!
- Caffeine has some adverse effects like insomnia, peeing and diarrhea.
- Caffeine benefits athletes and can improve endurance by reducing glucose burning and increasing fat burning.
- Caffeine is completely absorbed within 30-45 minutes and its effects diminish within 3 hours.
- Caffeine causes physical dependence. Withdrawals begin within 12-24 hours and can last 2 to 9 days. Symptoms include headaches, tiredness, depression, irratibility and decreased energy.
- Decaffeinated products still have caffeine in them. In the US, to be decaffeinated means less than 2.5% of the product is caffeine.