Oolong tea: These leaves are uncrushed leaves due to their sensitivity to complete oxidation.
Green tea: Green tea is a very minimal processed tea leaves and are not oxidized. In green tea, only leaves are used. It has high content of antioxidants.
Tea contains a group of chemical compounds called xanthine derivatives. They are caffeine, theobromine and theophylline. All these three chemical compounds stimulate central nervous system, brain and nerves. Increased nerve activity makes us alert and active.
Herbal tea does not contain tea leaves of Camellia Sinensis. Instead they have some herbs and spices. They are present in wide varieties because herbal tea is prepared with various herbs by focusing the health benefits of particular herb, spice or fruit. For example, cranberry tea is prepared from cranberries for treating urinary infection and mint tea for treating helminthes in intestine and dental problems. Other examples are saffron tea, lemongrass tea. Herbal tea does not contain caffeine because it is not prepared from tea leaves.
Green tea is a tea from very minimal processed tea leaves and is not oxidized. Green tea is unfermented. Therefore, the active constituents present in green tea are expected to be unaltered and are in high quantities. The polyphenols are high in green tea. Polyphenols are responsible for the antioxidant activity of green tea.
Green tea also contains chemical constituents present in tea. Because green tea is not fermented it contains high amounts of active constituents. The active constituents in green tea are caffeine, an alkaloidal substance that is responsible for the stimulation of nerves and central nervous system, polyphenols like polycatechines (epigallocatechin, epicatechin gallate and epigallocatechin gallate), saponins and amino acid theanine.Polyphenols and saponis provide several health benefits.
Acts as an antioxidant and antiaging
Reduce cholesterol and provides weight loss
Helps in preventing alzheimer’s and multiple sclerosis
Aid in prevention of cancer
Note: The health benefits of herbal products and supplements are mostly unproven clinically. Therefore, food and drug administration bodies do not provide approval. Check with your regulatory body for information on herbal products before use. It also important that you consult your doctor for any health problems for advice.
Green tea leaves are not processed or fermented leaves of tea Camellia Sinensis. Therefore, it is rich in active constituents. The therapeutically active compounds present in green tea besides caffeine are polyphenols and saponins. Polyphenols and saponins have several health benefits.
Coffee is a liquid decoction from the coffee beans of plant know as coffea arabica included in the family Rubiaceae
Coffee contains xanthine derivatives, caffeine, theobromine and theophylline.
Coffee contains a group of chemical compound called xanthine derivatives. They are caffeine, theobromine and theophylline. All these three chemical compounds stimulate central nervous system, brain and nerves. Increased nerve activity makes us alert and active.
Several research reports suggest that 5 to 6 times of drinking tea a day do not harm adults. However, one principle is that caffeine present in tea and coffee stimulates our brain. And when caffeine levels are low, we feel normal or below normal, especially when we get exhausted with work that involves mental attention. Then we again feel like having tea or coffee. Some reports suggest that addiction to tea is less common than addiction to coffee.
