Category Archives: Tea

Tea Versus Coffee

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Does Caffeine Consumption Cause Anxiety?

It is often reported that tea and coffee are able to trigger anxious symptoms in certain people. However, this anecdotal evidence is not supported by studies that have investigated the effects of caffeine, coffee and tea on the symptoms of … Continue reading

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Degradation of Carotenes in Tea Leaves

Tea leaves contains a number of phytochemicals that are degraded during the fermentation step to produce black tea. It has been suggested that these degradation products contribute significantly to the aroma and taste of black tea. A number of studies … Continue reading

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Carotenoids in Black Tea

Carotenoids are antioxidant pigments found in plants. Like many plants the tea plant (Camellia sinensis) is a good source of carotenoids, and there is evidence that they are bioavailable from brewed green and white tea. Once consumed, the carotenoids pass … Continue reading

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Berry Tea Versus Traditional Tea

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L-Theanine: It’s Effects on Mental State

L-theanine is an amino acid found in the tea plant (Camellia sinensis). When tea is brewed, L-theanine passes from the tea leaves into the water. Consuming tea therefore provides a source of L-theanine, and studies show that the L-theanine from … Continue reading

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Antioxidants in Tea

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Is Tea an Anti-anxiety Drink?

Tea is a complex mixture of chemicals and these have been isolated and characterised. Evidence suggests that tea has a calming effect, and this may relate to the unique chemical composition of the drink. The calming effects of tea may … Continue reading

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More On Green Tea

Tea is a drink made from the Camellia sinensis plant. After water, tea is the most popular drink in the world. Green tea is particularly healthy because of the way it is prepared, and in this regard contains high amounts … Continue reading

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L-Theanine in Tea Leaves

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