As we know green tea every day gains more followers, and is not due to a good marketing campaign, if not to the incredible benefits it has for our health and that have also been scientifically proven. It has been calculated that the English consume approximately 45 billion tea cups every year, or what is the same, plus or minus 2.1 kilos of tea per inhabitant. These are the 10 health benefits that green tea has and that have been demonstrated in human studies.
1. Green Tea Contains Bioactive Compounds
Many of the bioactive compounds in tea leaves, is what makes the final drink. They have large amounts of nutrients. Loaded with polyphenols such as flavonoids and catechins, which function as powerful antioxidants. These substances can reduce the formation of free radicals in the body, protecting cells and molecules from damage. These free radicals are known to play a great role against aging and all kinds of diseases. One of the most powerful components that contains green tea is the antioxidant gallate epilagocatequina (EGCG), which have been studied for the treatment of various diseases and may be one of the main reasons why green tea has such incredible medicinal properties.
“Tea also contains a small amount of minerals that are important for health”.
Try to choose a good brand of green tea, because there are some brands that are not so good and may have excessive levels of fluoride. That said, if you choose a lower quality brand, the benefits are still greater than the risk.
Conclusion: Green tea contains bio active compounds that can have various beneficial effects for health.
2. Green Tea Improves Brain Activity
Green tea not only keeps you awake, but also makes you smarter. The main active ingredient is caffeine, known as a great stimulant. While it is true that it does not contain as much caffeine as coffee, but if enough is enough to affect the body without causing a “nervousness” effect, associated with excess caffeine. What caffeine does in the brain is blocking an inhibitory neurotransmitter called adenosine. This increases neuronal activity and the concentration of neurotransmitters such as dopamine and norepinephrine. Caffeine has been studied in depth before, which leads us to an improvement of brain functions, including improvements in mood, attention, reaction time and memory. However, green tea is more than just caffeine; it also contains the amino acid L-theanine that crosses the blood-brain barrier. L-theanine increases the inhibitory activity GABA neurotransmitter, which has anti-anxiety effects. It also increases dopamine and the production of alpha waves in the brain. Studies have shown that both caffeine and L-theanine can have synergistic effects. The combination of these two is particularly important in brain function. Because of L-theanine and small doses of caffeine, green tea can give you a kind of agitation similar to the one that gives you coffee, but softer and different. Some people claim to have a more stable energy and are more productive when they drink green tea, compared to coffee.
Conclusion: green tea contains less caffeine than coffee, but enough to produce this effect. It also contains the amino acid L-theanine, which works in synergy with caffeine to improve brain activity.
3. Green Tea Increases Fat Loss
If you look at the list of ingredients that contains any supplement related to the burning of fat, it is likely that green tea is among them. It is because it has been shown that green tea increases fat burning and increases the rate of metabolism, in controlled trials to people. In a study with 10 healthy men, green tea increased energy expenditure by 4%. Other studies showed that fat burning increased by 17%, which indicates that green tea can selectively increase fat burning. However, I would like to point out that some studies on green tea have not shown an acceleration of metabolism, so it may depend on each individual. Caffeine itself has also shown that it helps improve physical performance, by mobilizing fatty acids from fatty tissues which gives us a focus of energy. In two separate studies under review, an increase in physical activity of 11-12% on average has been shown.
Conclusion: green tea has been shown to increase the rate of metabolism and fat burning in a short period of time, although not all studies agree.
4. Antioxidants Reduce the Chance of Cancer
Cancer is due to uncontrolled cell growth. It is one of the most important causes of death in the world. It is well known that oxidation contributes to the development of cancer and that antioxidants can have a protective effect. Green tea is one of the best sources of antioxidants, so it is logical; helps reduce the possibility of cancer, which is what it does:
- Breast cancer: Through meta-analysis, it has been observed that in the case of women who drank green tea, they had a lower risk (22%) of suffering from breast cancer, the most common among women.
- Prostate cancer: One study found that men who drank green tea had a lower risk (48%) of developing prostate cancer, which is the most common among men.
- Colon cancer: A study based on 69,710 Chinese women revealed that those who drank green tea were up to 57% less likely to get colon cancer.
In conclusion: green tea has strong antioxidants that protect you against the risk of cancer. Multiple studies on green tea showed that it reduces the possibility of suffering from different types of cancer
5. Green Tea can Protect Your Brain from Old Age
It not only improves brain activity in a short period of time, but also protects your brain from old age. Alzheimer’s is the most common neurodegenerative disease among people and the main cause of dementia. Parkinson’s is the second most common neurodegenerative disease, which involves the death of neurons that produce dopamine in the brain. A large number of studies have shown that catechin compounds in green tea can have various protective effects on neurons in tests carried out in test tubes and in animals, which could reduce the risk of Alzheimer’s disease and Parkinson’s
Conclusion: The bioactive compounds, of which green tea is composed, have various protective effects for neurons and can reduce the risk of suffering both Alzheimer’s and Parkinson’s.
6. Green Tea Kills Bacteria
Green tea catechins have other biological effects. Some studies have shown that they can kill bacteria and inhibit viruses, such as the flu virus and reduce infections. Studies have shown that green tea can inhibit mutant streptococci (the main bacteria in the mouth, causing bacterial plaque). So ultimately it manages to reduce the possibility of caries formation.
Conclusion: Green tea catechins, inhibits the development of bacteria and some viruses, which leads to the reduction of infections, as well as that of your dental health.
7. It Can Reduce the Risk of Type II Diabetes.
Type II diabetes is a disease that has reached pandemic levels in the past decades and now affects some 300 million people worldwide. This disease consists of having high levels of blood sugar in a situation where it is resistant to insulin as well as the inability to produce it. Studies show that green tea can improve insulin sensitivity and reduce blood sugar levels. A study in Japanese showed that those who drank green tea had a 42% lower chance than those who did not suffer from type II diabetes. According to the 7 studies that were conducted with a total of 286,701 people, green tea drinkers had an 18% lower risk of developing diabetes.
Conclusion: Some controlled trials show that green tea can slightly reduce blood sugar levels. As well as it can decrease the risk of developing type II diabetes in the long term.
8. Green Tea can Reduce the Number of Heart Attacks
Cardiovascular diseases, such as heart disease are the leading causes of death in the world. Studies have shown that green tea can improve some risk factors that can cause these diseases. This includes LDL cholesterol, triglycerides. Green tea dramatically increases the antioxidant capacity of the blood, which is what protects the LDL cholesterol particles from oxidation, which is a part that leads to heart disease. This means that green tea exerts an influence on those risk factors, so that green tea consumers have a 31% lower chance compared to those who do not consume it to suffer from cardiovascular diseases.
Conclusion: green tea has shown that it can reduce cholesterol, as well as LDL cholesterol and protect its particles from oxidation.
9. Green Tea Decreases the Risk of Getting Fat
Since green tea can increase the rate of metabolism in a short period of time, therefore, this can help you lose weight. Several studies have shown that green tea decreases the body tier, especially in the abdominal area. One of these controlled studies was randomly chosen to 240 men and women, who for 12 weeks. In the study, it was appreciated that the group that consumed green tea had a significant decrease in body fat, as well as its weight and the area of the waist and abdominal area. However, some studies do not show sufficiently characteristic data that allows us to say that it reduces fat in the abdominal area, it must be questioned.
Conclusion: some studies have shown that green tea helps lose weight, as well as sometimes helps reduce fat in the abdominal area.
10. Green Tea Decreases the Risk of Dying
It is obvious that we all have to die at the end of time, it is inevitable. But, because consumers of green tea have a lower chance of suffering from cardiovascular disease or suffering from cancer, it seems logical to think that this makes you have a longer life. In a study based on 40,530 Japanese, of legal age, those who ingested a greater amount of green tea were much less likely to die in a period of 11 years. Another study conducted with about 14,001 Japanese between 65-84 years of age, showed that those who drank more green tea had a 76% less chance of dying in a period of 6 years since the study was carried out.
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