Green tea is one of the popular beverages and it is one of those beverages that is known to have many health benefits. Green tea has many benefits on the body and it lies on the fact that it is highly rich in catechin and polyphenols, especially EGCG. EGCG is a powerful antioxidant that has multiple health benefits.
Green tea contains a unique set of catechins that contain many properties including antioxidant, anti-angiogenesis, and antiproliferative, that are beneficial in treating and preventing multiple health benefits.
The health benefits of green tea largely depend on its bioavailability after consumption. The components that are present in green tea causes various metabolic processes in the body such as glucuronidation, methylation, and sulfation, which produces active metabolites. The catechins and their metabolites can be found in blood plasma, urine, and the tissues in the body.
Green tea is also known as Camellia sinensis. Catechins are the active compounds in green tea and they are categorized into six primary compounds - catechin, gallocatechin, epicatechin, epigallocatechin, epicatechin gallate, and epigallocatechin gallate.
As stated, consumption of green tea has multiple health benefits on the body and is beneficial in the treatment and prevention of various health problems. Some of the health problems are as follows:
Obesity is one of the public health concerns as it is one of the leading cause of death and disability in people. Obesity is characterized by the accumulation of excessive fat in the body to an extent that it has a negative impact on the health of an individual and it also interferes in doing daily activities.
Green tea is known to be one of the effective ways to prevent obesity and to lose weight. Obesity is strongly associated with energy expenditure and according to the studies, there is a relationship between green tea extracts and energy expenditure. Green tea is high in caffeine and catechins polyphenols that affects energy expenditure and fat oxidation. The EGCG in green tea is known to have an anti-obesity effect.
Diabetes is a common health problem throughout the world and millions of people are living with this disease. Diabetes is characterized by hyperglycemia or in other terms, the high glucose level in the blood which results from problems with insulin secretion, problems with using insulin, or both.
Green tea is known to have an anti-diabetic effect and it is primarily due to its insulin enhancing the property. Insulin is the most important hormone that regulates the level of glucose in the blood. Green tea helps to reduce glucose level in patients having diabetes and it helps in maintaining the normal level of glucose in non-diabetic patients. The extracts of green tea have several benefits on diabetic patients and it helps to avoid complications associated with it.
Evidence suggests that green tea is also beneficial in preventing the development of cancer. According to the researchers, consumption of green tea is associated with the prevention of various types of cancer including lung, colon, mouth, kidney, small intestine, and pancreas.
The main component of green tea is EGCG and it is strongly associated with the prevention of cancer. EGCG is a powerful antioxidant that inhibits the growth of cancer cells. It kills the cancer cells without harming healthy tissues in the body. The way in which the catechins in green tea inhibits carcinogenesis is by increasing the level of glutathione S-transferase pi that catalyzes detoxification reactions which inhibits the carcinogen induced DNA damage.
4. Cardiovascular disease
Cardiovascular diseases involve a group of diseases that are associated with the heart. Consumption of green tea is associated with less development and progression of cardiovascular diseases. Cardiovascular diseases involve multiple factors such as inflammation, oxidative stress, lipid metabolism, and platelet aggregation.
The extracts of green tea influence the cardiovascular function through the action that is correlated with the cholesterol level in the body. There are two types of cholesterol - high density lipoprotein (good cholesterol) and low density lipoprotein (bad cholesterol). Green tea can have a positive impact on lipid metabolism as it helps to reduce low density lipoprotein from the body and increase high density lipoprotein. Green tea is beneficial in preventing the development of cardiovascular diseases like atherosclerosis and coronary heart disease.
High blood pressure is another factor that plays an important role in the development of cardiovascular disease and green tea is known to have a positive effect on the blood pressure of an individual as well.
5. Oral Health
Yes, green tea is an effective way to maintain oral health. There are many different types of oral problems that can have a major impact on the overall health of a person such as dental caries, periodontal disease, and tooth loss. Green tea is known to have an effect on almost all oral illnesses.
The extracts of green tea are powerful herbs that can reduce inflammation caused by oral diseases. The antibacterial property of green tea is known to play a role in the prevention and treatment of oral diseases. Also, EGCG in green tea has been shown to inhibit the ability of the bacteria to bind to oral epithelial cells and it has also been shown to inactivate bacterial collagenases.