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Green tea is very good but the following groups of people should consider when using it

Green tea is a healthy drink, thanks to its high antioxidant content, which aids in weight loss and boosts metabolism.

Báo Thanh niênBáo Thanh niên27/08/2025

However, not everyone is suitable for this type of tea. For some people, drinking green tea, especially drinking too much, can cause many serious side effects.

According to experts from the Garnet Health hospital system, green tea contains caffeine, tannins and catechins - compounds that can have positive or negative effects on the body depending on the individual and dosage consumed.

The following are groups of people who should consider or avoid using green tea to avoid unwanted consequences.

Green tea is very good but the following groups of people should consider using it - Photo 1.

People with stomach ulcers or weak digestive systems should drink tea after meals or away from meals - Photo: AI

People with sensitive stomachs or acid reflux

Tannins in green tea increase stomach acid secretion, which can easily cause bloating, stomach pain, constipation or make reflux symptoms worse, especially if drunk on an empty stomach.

Green tea can also interfere with the absorption of nutrients, especially iron.

People with stomach ulcers or weak digestive systems should drink tea after meals or away from meals, and not drink it early in the morning on an empty stomach, according to Garnet Health.

People with anemia or iron deficiency

Green tea can interfere with the absorption of iron, especially the iron found in plants, eggs, and milk. For people with anemia, this can make the condition worse. If you must drink green tea, drink it at least 1 hour before meals and supplement with foods rich in vitamin C to aid iron absorption.

People sensitive to caffeine

Some people are sensitive to caffeine, and even small amounts can cause jitters, rapid heartbeat, insomnia, or irritability. Green tea, although it contains less caffeine than coffee, can still cause side effects if consumed in large amounts. Sensitive people should limit their intake or choose decaffeinated tea.

People with certain special medical conditions

Green tea may aggravate conditions in people with anxiety disorders, heart palpitations, bleeding disorders, or glaucoma. Additionally, in concentrated extract form, green tea may affect the liver. People with osteoporosis should also be cautious because caffeine can cause calcium loss in the urine, according to Garnet Health.

Also, pregnant and lactating women as well as children should not drink green tea.

Source: https://thanhnien.vn/tra-xanh-rat-tot-nhung-nhom-nguoi-sau-day-nen-can-nhac-khi-dung-185250827174423149.htm


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