Green tea: uses, dosage and background

( 27 November 2019 )

Find out about the health benefits of green tea



What is green tea?

Green tea is made from the same leaves as black tea, but it is prepared in a different way. Oxidation of the leaves is stopped, so that they keep their green colour.

Green tea has no calories but contains many minerals and vitamins.

It tops up the antioxidant levels equivalent to that obtained from fruit and vegetables.

What are antioxidants?


What are the health benefits of green tea?

It has numerous health benefits as tablets or drunk as tea.

It prevents mouth and throat infections and improves dental health - it kills harmful bacteria.

It reduces cholesterol levels, improves blood vessels and reduces inflammation.

It helps digestion by regulating bowel function.

It stimulates your immune system, and reduces inflammation.

It may have a role in cancer risk reduction.

It could increase insulin activity, which would be useful in preventing and controlling Type II diabetes.

Tea or coffee - which one is better for you?

What if I prefer to take a green tea supplement?

Capsules and tablets containing standardised extracts have as much goodness as four cups of Green Tea.

Do supplements work?

Is green tea safe?

Green tea is extremely safe and has no adverse reactions. However some people find drinking green tea on an empty stomach can make them feel nauseous, but feel fine drinking it on a full stomach. 

Six cups of green tea have as much caffeine as one cup of coffee. So, ten or more cups of green tea in a day could cause insomnia and anxiety due to the amount of caffeine.

Large amounts of green tea might interfere with the absorption of iron from your diet, but normal amounts have no such action.

Maximum health benefits come from drinking your green tea without sugar or milk, although semi-skimmed milk is acceptable.

How to brew the perfect cup of tea

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The opinions expressed are those of the author and are not held by Saga unless specifically stated.

The material is for general information only and does not constitute investment, tax, legal, medical or other form of advice. You should not rely on this information to make (or refrain from making) any decisions. Always obtain independent, professional advice for your own particular situation.