Green tea has different benefits based on how effective it is.Possibly Useful:
Men with heart disease who drank green tea had lower cholesterol levels, lower blood pressure, and a lower risk of developing hyperlipidemia. This was the conclusion of a study that was published in the International Journal of Cardiology in 2016. It’s also linked to heart disease and green tea consumption in men without heart disease, and drinking three cups of green tea a day can significantly cut the risk of heart disease in women. 
People who drink green tea may have a lower risk of endometrial cancer, but more research is needed to make sure. This is based on a systematic review and meta-analysis of several studies, which was published in Gynecologic Oncology in 2016. It is very clear, and the reasons why this link is there are very well known. 
This is what a meta-analysis of 14 studies found: Drinking green tea or taking its extract led to a significant and significant drop in cholesterol levels in the blood, without affecting the levels of good cholesterol, which is good for the heart (HDL). 
The Journal of Hypertension published a systematic review in 2015 that looked at 14 studies. The consumption of green tea or its extract led to a significant drop in blood pressure in overweight and obese adults. The need for more high-quality studies, with more participants, to confirm the effectiveness of green tea in blood pressure. People who have high blood pressure are more likely to have high blood pressure because green tea has a lot of caffeine. People who drink a lot of caffeine from green tea and other sources may not have as much of an effect. 
People who drink green tea may be less likely to get ovarian cancer, according to a review of 22 studies in the journal Gynecologic Oncology in 2012. Green tea and its components had a positive effect on ovarian cancer in lab studies. A disease of the ovaries. 
In 2016, a review in the journal CNS & Neurological Disorders – Drug Targets said that phenolic compounds in green tea, which have antioxidant properties and are good for nerves, may help reduce the risk of Parkinson’s disease. Parkinson’s disease is the second most common neurodegenerative disorder in the world. 
Reducing the chance of getting amyloidosis, which is a rare disease that happens when an abnormal protein called amyloid builds up in the body’s organs and stops them from working normally.  A study in the Journal of Clinical Research in Cardiology said that. In 2012, green tea and its extract may have slowed the growth of heart amyloidosis, but more research is needed to confirm this. 
Green tea’s effect on athletic performance isn’t clear. Some preliminary research shows that drinking green tea extract doesn’t improve breathing and athletic performance in people who do endurance exercise. Other preliminary research shows that taking Green tea supplements three times a day with meals improves some exercise breathing tests. 
Giving green tea: A study in the journal Medicines in 2018 found that green tea might not be as good for your bladder as it is thought to be. Studies on animals and in the lab have shown that phenolic compounds in green tea can slow the growth and spread of cancer cells in the bladder. Some studies on humans have shown that there is no link between drinking green tea and having bladder cancer, so more research is needed to be sure that green tea can help fight cancer. 
There is some evidence that green tea can protect animals from cancer, but there aren’t many people who drink it, so the results of a study in 2011 aren’t clear because there aren’t that many people who drink it. Studies on humans show that the results of these studies aren’t always clear, and there aren’t enough studies on how green tea consumption affects the risk of breast cancer in humans. 
In 2010, an in vitro study in the International Journal of Gynecological Cancer found that polyphenol compounds in green tea can slow down the growth of cancer cells in the cervix by stopping the growth of cervical cells linked to the virus. Human papillomavirus, which is linked to more than 95% of cervical cancer cases. 
There is some evidence that green tea supplements with a specific formula can help people who have cold symptoms, as well as help their gamma delta T cells (T cell) work better. 
A study in the American Journal of Clinical Nutrition in 2009 found that people who drink a lot of green tea are less likely to have depressive symptoms in their old age. 
People who don’t drink alcohol may have a lower risk of getting esophageal cancer if they drink green tea. A meta-analysis of 10 studies published in BMC Gastroenterology in 2012 found that there was no link between drinking green tea and the risk of getting esophageal cancer for people who don’t drink alcohol. Esophageal cancer is more common in women, and more research is needed to show that drinking green tea on a regular basis can cut the risk of getting it. 
People who drink green tea may be less likely to break their bones, according to a review in Nutrition Research in 2009. Green tea and its bioactive components may improve bone mineral density and stimulate the activity of osteoblasts. Osteoclasts are also stopped. 
Preliminary research published in the Annals of Internal Medicine in 2006 found that people who drank green tea and had a lot of caffeine were less likely to get type 2 diabetes. These results were more pronounced in women and men who were overweight. Caffeine use was linked to a 33% lower risk of diabetes. 
A study published in the Journal of Nutrition in 2011 said that drinking green tea every day could cut the risk of getting the flu in kids, but more studies are needed to confirm this and make sure that drinking tea is safe. By children, the grass is green. 
More research is needed to prove that green tea can help people with seasonal allergic rhinitis, but a 2014 study in Allergology International found that some compounds in green tea can help. 
People who drink green tea, which has a lot of catechins, may be less likely to get leukemia if they’re older than 16. People in their late 20s and early 30s saw a big change, but not in younger groups. 
People who drink green tea are less likely to get liver diseases, like hepatocellular carcinoma and hepatitis, according to a meta-analysis in the International Journal of Clinical and Experimental Medicine in 2015. Green tea can help people with liver steatosis, cirrhosis, and chronic liver disease, but more research is needed to fully understand its long-term benefits. 
A meta-analysis of 22 studies published in Lung Cancer in 2009 found that people who drink more green tea may be 18% less likely to get lung cancer. 
L-theanine and caffeine, which are found in green tea, improve alertness and focus, according to a review of 49 studies published in Current Pharmaceutical Design in 2017. L-theanine and caffeine also improve memory and reduce distraction. The compound also helps you relax by cutting down on the alertness caused by caffeine. 
If you drink 700 milliliters of green tea every day for 12 weeks, your liver fat levels will go down and your inflammation will go down. This is according to a study in the International Journal of Molecular Medicine in 2013. This is how it helps people with non-alcoholic fatty liver disease. 
Cancer that starts in white blood cells called lymphocytes, which are important parts of the body’s immune system, can be cut down on.  A review of many studies in the journal Nutrition and Cancer in 2019 found that people who drink more green tea may be less likely to get non-lymphoma. Hodgkin’s 
Preliminary research published in the journal General Dentistry in 2002 found that people who drink green tea on a regular basis can lower their risk of oral cancer. This may be because the polyphenol compounds in green tea can cause oral cancer cells to die off. 
A study in the journal Cancer Epidemiology in 2012 found that women who drink green tea on a regular basis have a 32% lower risk of pancreatic cancer. People who drink tea at a lower temperature also have a lower risk of pancreatic cancer, depending on how much tea they drink and how long they drink it for. 
Preliminary research in the American journal of clinical nutrition in 2009 found that Japanese women who drink more green tea have a lower risk of death from pneumonia. Pneumonia is swelling and inflammation of the tissues in one or both lungs, usually caused by a bacterial infection. 
A systematic review and meta-analysis published in Medicine in 2017 found that people who drink more green tea have a lower risk of getting prostate cancer. The catechins in green tea also had a positive effect on the risk of this disease. More research is needed to show that this is true. 
Biological and Pharmaceutical Bulletin: A preliminary study in 2017 found that drinking low-caffeine green tea can help students deal with stress and tension better. 
A study in the Tohoku journal of experimental medicine found that people who drank small amounts of green tea every day were more likely to have a stroke or a brain hemorrhage than people who drank a lot of green tea every day. People who drink a lot of green tea every day. 
It’s thought that tea can help in some other situations, but there isn’t enough evidence to back this up. We’ll talk about some of these cases: 
Improving infertility, or the inability to have a baby, after a year of trying to have a baby.
The goal is to improve the condition of oral leukoplakia, which is a condition that causes white spots inside the mouth and is usually caused by smoking.
To learn more about the health benefits of green tea, you can read the article on the health benefits of drinking green tea before going to bed.
Green tea can help you lose weight.
People who are overweight or obese can lose some weight by drinking green tea, but it doesn’t help them keep it off. A systematic review of a number of studies published in the Cochrane database of systematic reviews in 2012 found that the results of these studies on the weight-loss effects of green tea were different, but it was found that green tea can help people lose some weight but doesn’t help them keep it off. 
To learn more about the health benefits of green tea for weight loss, you can read the article Benefits of green tea for weight loss.
It is good for you to drink green tea because it has a lot
There are many nutrients in 100 milliliters of unsweetened green tea, and this table shows them.
People who drink green tea have some side effects, but they don’t
It has been given a high level of safety for green tea
Green tea is thought to be safe for most healthy adults who drink it in small amounts. Most people can take green tea extract for up to two years, but this extract can cause stomach upset and constipation in some people, as well as problems with the liver and kidneys in rare cases. 
Green tea can be dangerous if you drink it for a long time, or if you drink a lot of it. The high amount of caffeine in green tea can cause some side effects, which can be mild to very bad. These include headaches, nervousness, insomnia, vomiting and diarrhea. They can also cause irritability, irregular heartbeat, tremor and heartburn. Green tea also has a chemical compound that has been linked to liver damage when taken in large amounts. 
It is probably safe for children to drink green tea in the amounts that are used in foods and drinks. There is not enough information about the safety of taking green tea extract for children, and there have been cases of liver damage in adults who took green tea extract, so some experts say not to take green tea extract. Under 18-year-olds should drink green tea. 
If you drink up to 6 cups of green tea a day, which has about 300 milligrams of caffeine in each cup, you’re probably safe to drink during pregnancy. But if you drink more than 300 milligrams of caffeine during pregnancy, you’re probably not safe to drink. This has been linked to an increased risk of miscarriage, and many other negative effects. 
It’s important to note that caffeine passes through the body and into breast milk, which can have an effect on the baby. The nursing mother should keep an eye on her caffeine intake to make sure that two to three cups of coffee or tea a day doesn’t exceed the sources of caffeine. Then, you have trouble sleeping, are more irritable, and your bowels move more. 
Green tea has some drawbacks.
Some people should be careful when drinking green tea because it can have side effects that could hurt them. We’ll talk about these groups here: 
People with anemia: Green tea can make anemia worse.
A lot of people who have bleeding disorders should not drink green tea because it has a lot of caffeine, which can make them more likely to have a bleeding episode.
Some people who have heart problems: Green tea can make their heart beat irregularly.
With diabetes: Green tea can make it hard to control blood sugar levels, so people with diabetes who drink it should keep an eye on their blood sugar levels.
People who have glaucoma, or as it is called, glaucoma, should not drink green tea because it can make their eyes more irritated. This happens within 30 minutes of drinking green tea, and lasts at least 90 minutes.
Caffeine in green tea can raise blood pressure in people who already have high blood pressure, but this doesn’t seem to happen if people drink green tea or other caffeinated drinks every day.
People with Irritable Bowel Syndrome: Green tea can make diarrhea and IBS symptoms worse if you drink a lot of it.
People with Liver Diseases: Green tea extract supplements have been linked to many types of liver damage, so green tea extracts can make things even worse for people with liver disease.
People who have osteoporosis should limit their caffeine consumption to less than 300 milligrams a day, which is about two to three cups of green tea. Some of the calcium that is lost can be replaced by drinking more calcium-rich foods, such as milk and cheese. People who don’t want to drink coffee can avoid it by taking calcium supplements
Caffeine can make people more anxious, as well as make them sleepy, have an upset stomach, or get headaches in some people.