Irremediable harm: a popular drink has proved to be hazardous to health.

Green and black tea are good for health and even help to lose weight, but drink should be consumed correctly.

The well-known nutritionist Svetlana Fus told about this on her Facebook page, adding that this type of fluid can cause irreparable harm to the body otherwise.

The benefits of green tea

Green tea

Green tea

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"In tea leaves – a large amount of biologically active organic compounds. These include catechins (polyphenols), proanthocyanidins, tannins, caffeine, theophylline, theobromine. They also contain amino acids, mineral salts and vitamins. But the main use of tea in polyphenols", – told Fus.

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These substances have antioxidant and antibacterial properties, reduce the risk of developing tumors, cardiovascular diseases, diabetes, slow down the aging of the body. In the production of green tea, these compounds do not change.

Is fermented black tea useful?

Black tea

Black tea

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Antioxidants are converted into organic compounds flavin and thearubigins, which are responsible for the brown-orange color. They have the same antioxidant activity as catechins in green tea.

Fermentation of leaves changes the ratio of tannins and catechins, but does not reduce their total amount. Black tea is no less useful than green tea, since polyphenolic compounds are equal in activity.

Unreasonable use turns harm

Tea leaves, which "stood", is dangerous to health. Tea should be drunk only freshly. Otherwise, the concentration of guanine increases, the products of its oxidation accumulate. It turns out toxic guanidine, which adversely affects the nervous and cardiovascular systems, the gastrointestinal tract.

Tea party

Tea party

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If a large amount of this substance enters the body, blood pressure rises, heartbeat increases.

Also, the use of green, black tea, coffee and cocoa reduces the absorption of iron, zinc and calcium due to saturation of polyphenols. Therefore, a nutritionist does not recommend drinking strong drinks for more than three cups a day.

Tea party

Tea party

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If you are pregnant or planning a child, you should limit the amount. An excess of catechins reduces the absorption of vitamin B9 (folic acid). Children under four years are generally not recommended to drink these drinks.

In large quantities, tea and coffee dehydrate the body. But this happens if the amount of drink consumed corresponds to 300 mg of caffeine or theine, which is about six cups at a time. A safe dose of these substances is up to 200-300 mg / day.

As careersatglatfelter.com reported, earlier scientists at Ohio State University came to the conclusion that green tea helps fight obesity and reduces the amount of sugar in the blood, as well as to maintain weight.

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