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does green tea have caffeine?

Black tea, green tea and oolong tea all contain caffeine. Generally, black tea contains more caffeine than green tea. However, caffeine content is also related to the brewing process, and the longer the tea is steeped, the higher the caffeine content. 

An 8-ounce (240mL) cup of coffee contains about 95 mg of caffeine > 240mL of black tea has about 48 mg > 240mL of oolong tea has about 38 mg of caffeine > 240mL of green tea has 29 mg. 

In addition to caffeine, tea and herbal teas also contain minerals such as potassium, phosphorus, magnesium, sodium, copper and zinc.

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  1. Zhejiang Anji White Tea
  2. West Lake Longjing Green Tea
  3. Laoshan Green Tea

5 benefits of drinking tea:

1. Antioxidant effect:

Tea contains natural substances – polyphenols, which are antioxidants and can reduce the risk of chronic diseases. According to research, the antioxidant effect of green tea is more powerful than other types of tea. However, during the processing of tea, polyphenols may be destroyed, so the polyphenols content of tea powder and bottled tea will be relatively small. 

2. Weight management:

The caffeine and catechins (a type of polyphenol) in tea can help with weight loss. However, caffeine-free green tea does not seem to have the effect of weight loss. 

3. Heart health:

People who drink tea regularly can help maintain heart health. Relevant studies have shown that people who regularly drink green tea or black tea have a reduced risk of heart disease. 

4. Diabetes:

The catechins in green tea help control blood sugar and reduce the risk of type 2 diabetes. 

5. Cancer:

Tea drinkers may have a lower risk of certain types of cancer, but more evidence is needed to confirm whether they can reduce the risk of those cancers. 

Drinking tea has many benefits, but too much tea can also cause health alarms!

The first risk is excessive caffeine intake: large amounts of caffeine may cause nervousness, restlessness, and interfere with sleep. Furthermore, some people may also face loose stools or other gastrointestinal problems. Nausea, abdominal pain, heartburn, dizziness, and muscle pain are also possible side effects of consuming too much caffeine. 

It may interact with certain medications and increase the effects of caffeine in the body, so the total daily caffeine intake should not exceed 400 mg! 

Tea can be part of a healthy diet, but you should be careful when brewing your own tea. Drinking tea that is too hot (55-60°C) may be harmful to your health, such as increasing the risk of esophageal cancer and gastric cancer; in addition, tea When drinking, try to choose a sugar-free method to avoid consuming too much sugar, which may increase your caloric intake.

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