We previously talked about the benefits and harms of caffeine. Now we will talk about caffeine in general. It is the most widely used alarm clock in the world.
It's cheap and easily accessible - available in both natural sources, such as coffee, tea and cocoa, and as an additive in sodas, energy drinks, over-the-counter medicines, a number of foods, and some other amazing products.
What is caffeine?
Caffeine is a natural stimulant that is widely consumed around the world. It works by stimulating the brain and central nervous system, which helps you stay alert and prevents fatigue.
See: The Healthiest and Worst Frying Oils
How does caffeine work?
Once you ingest caffeine, it is quickly absorbed from the intestines into the bloodstream. From there, it travels to the liver and is broken down into compounds that can affect the functions of various organs.
However, the main effect of caffeine is on the brain. The main effect of caffeine on the brain. It stimulates the brain by blocking the effects of the neurotransmitter adenosine (s).
The amount in one cup of coffee can take as little as 20 minutes to reach the bloodstream and about an hour to reach full effectiveness (s).
Foods and drinks that contain caffeine
Caffeine is found naturally in the seeds, nuts, or leaves of some plants. These natural sources are then harvested and processed to produce caffeinated foods and beverages.
Here are the expected caffeine amounts per 100g of some popular drinks (s):
- Dark chocolate coated coffee beans: 839 mg
- Coffee: 100 mg
- Energy drinks: 38 mg
- Soft drinks: 10 mg
- Espresso: 212 mg
- Green tea: 12 mg
- Red tea: 11 mg
- Dark chocolate: 86 mg