What is caffeine?

Caffeine is a xanthine alkaloid compound and a stimulant of the central nervous system, which can temporarily drive away drowsiness and restore energy. Caffeine can excite the central nervous system at first, so it can increase alertness, make people alert, think quickly and clearly, increase attention and maintain good physical condition.

In North America, 90% of adults use caffeine every day. Many natural caffeine also contains many other xanthine alkaloids, including theophylline and theobromine, and other substances, such as tannic acid.

Use:

Caffeine is also a common ingredient in soft drinks, such as cola, which was originally made from cola nuts. A bottle of soft drinks usually contains 10 mg to 50 mg of caffeine. Energy drinks, such as Red Bull, contain 50 milligrams of caffeine per bottle.

The caffeine in these drinks comes from the original ingredients they use or additives obtained from decaffeinated coffee, and some of them are chemically synthesized guanine. The basic ingredients of many energy drinks contain a large amount of caffeine and a small amount of theobromine, and the natural sustained-release excipients contain a small amount of theophylline.