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how much caffeine in green tea?

Green Tea Contains Less Caffeine Than Other Caffeinated BeveragesAlmost all types of tea have the effect of refreshing the mind. The reason for this effect is that tea contains caffeine and theobromine, which interact to produce this effect. 

However, the amount of caffeine in tea is much less than that in coffee, so it can be said to have no harm to the body. Different types of tea and different brewing times will affect how much caffeine is extracted from the tea leaves in one cup. 

Caffeine: It is a xanthine alkaloid compound, a central nervous system stimulant that can temporarily dispel drowsiness and restore energy. It is clinically used to treat neurasthenia and coma recovery. Caffeine is also the most commonly used psychoactive drug in the world. 

However, excessive intake can be harmful. But the caffeine content in tea leaves is minimal, so there is no need to worry. Excessive intake of caffeine can disrupt sleep patterns and cause mental disorders. It can also cause intestinal spasms and long-term consumption can lead to chronic gastritis, stimulate kidney function, cause children to urinate more, lose a lot of calcium, and affect bone development.

 Caffeine is found in a wide range of beverages like black tea, coffee, soft drinks and energy drinks. 

Here’s the caffeine content in 8 ounces (230 ml) of some popular drinks so you can compare the caffeine content: 

  • Green tea: 30–50 mg
  • coffee: 27–173 mg
  • brewed coffee: 102–200 mg
  • Espresso: 240–720 mg
  • Black tea: 25–110 mg
  • Yerba mate: 65–130 mg
  • Soft drinks: 23–37 mg
  • Energy
  • drinks: 72–80 mg

 As you can see, the caffeine content per 8 ounces is usually much higher for other caffeinated beverages. 

Like green tea, there is a range of caffeine in these drinks. Yet black tea contains, on average, around 55 mg of caffeine per 8 ounces, while brewed coffee contains 100 mg. 

Interestingly, green tea also contains the amino acid L-theanine, which has been shown to work synergistically with caffeine. Thus, you get a milder but different kind of buzz than with coffee, despite the lower caffeine content of green tea. 

In particular, the combination of L-theanine and caffeine has been shown to help improve both alertness and focus, which may make green tea a better drink than coffee if you’re doing tasks that require a lot of thought .

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