Green tea has been appreciated for centuries not only for its mild taste, but also for its potential health benefits.
Nutritionist Galina Leonova commented RuNews24.ru scientific facts about green tea, and also highlighted the main properties of the drink and explained how to include it in everyday diet.
Green tea is the leader in polyphenols among beverages. Epicallocatechin gallate (EGCG) - a powerful antioxidant that protects the cells of the body from oxidative stress» says the expert.
The catechins in green tea are able to neutralize free radicals that destroy cells, thereby reducing the risk of chronic diseases and supporting aging processes at a milder level.
Action mechanisms:
-Caffeine - stimulates the nervous system, increasing concentration and performance.
-L-teanine is an amino acid that has a calming effect without drowsiness.
-EGCG and other polyphenols - regulate the level of neurotransmitters.
The combination of caffeine and L-teanine helps to keep one’s spirits up without excessive nervousness, while polyphenols and catechins provide additional protection for neurons.
Experimental studies in animals and cells show that the components of green tea slow down the development of Parkinson’s and Alzheimer’s disease.
«Regular moderate consumption of green tea can support cognitive functions and reduce the risk of neurodegenerative diseases».
Observational studies show that people who often consume green tea have reduced the risks of developing various types of cancer:
- Breast cancer - 20-30%
- Colorectal cancer - 42%
«Catechins block the growth and spread of tumor cells, but it is worth remembering: green tea does not replace medical prevention and treatment!» , the expert commented.
Several studies have noted the positive effect of green tea on metabolism and fat oxidation.
«Green tea is not a panacea for slimming, but in combination with the right diet helps to maintain healthy weight», - emphasizes Galina Leonova.
Catechins suppress bacterial growth, contributing to the prevention of caries and kidney diseases.
Some studies indicate that green tea has the ability to lower blood sugar levels and reduce the risk of type 2 diabetes.
«Include green tea in the diet for mild support of glucose control, especially if you are at risk for diabetes».
In Japanese studies, there is a trend: people who regularly drink green tea live longer and have lower mortality rates from various causes.
These results are largely related to a whole set of healthy habits, in which is written and regular intake of green tea.
«Most interventional studies have been conducted with tea extracts or concentrates rather than traditional beverages. Many data are based on observational studies, the narrow focus of which requires further confirmatory tests», - notes Galina Leonova.
Green tea is not only a drink, but also a whole complex of biologically active compounds that have a beneficial effect on the body. Regular but moderate consumption of green tea as part of a balanced diet can be a factor in improving health and quality of life.