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Instant tea is a type of tea that was developed in the United Kingdom in the late nineteenth century. It is a powdered beverage made from concentrated tea extract, sugar, or evaporated milk. The drink is then mixed with water to make a drink that is ready to drink.
A number of studies have demonstrated the beneficial effects of tea polyphenols on a wide range of diseases. These include anti-cancer and anti-aging properties. They are also known to have hypoglycemic and anti-inflammatory effects. Moreover, tea polyphenols can act as a natural antioxidant. They also provide protection against senile plaque, freckles and UVB-induced skin cancer.
Tea polyphenols are found naturally in all teas. However, their concentrations vary according to climate, horticultural practices and species. Moreover, some are insoluble. Thus, the composition of tea depends on these factors. Studies indicate that daily consumption of tea can reduce the risk of cognitive impairment. In addition, tea polyphenols have been shown to inhibit melanoma cell migration and proliferation. Polyphenols in green tea may also have an inhibitory effect on tumor growth of non-small cell lung carcinoma (NSCLC) cells. ECG, the main polyphenolic compound in green tea, suppresses urokinase-type plasminogen activator (PA), matrix metalloproteinase-2 (MMP2) and mesenchymal markers.
Although numerous studies have shown that the chemoprevention properties of tea polyphenols are promising, more studies are required to establish the mechanism of their action. Currently, well-designed and large-scale intervention trials are necessary. Recent studies have focused on the protective effects of tea polyphenols on chronic diseases. For example, a review on the chemoprevention of Alzheimer's disease indicated a positive effect. Another study showed that daily tea drinking decreased the risk of mild cognitive impairment.Caffeine content in instant tea varies, but it's usually lower than that of brewed tea. Instant tea can be sweetened with a variety of ingredients. However, sugar is not a good source of additives.
When choosing an instant tea, you should consider the following: