Black tea has many important functions in the body. In particular, the flavonoids in its content show an anti-inflammatory activity by showing a strong antioxidant effect and destroying some oxidative enzymes. It provides a protective effect against diseases by increasing the immune system in individuals with high risk of infection due to the antioxidant effect.
The antioxidant ability of tea flavanols depends on the number of hydroxyl groups, where they are attached and the presence of some groups. A study conducted in 1998; It has shown that the antioxidant power of catechins in tea is higher than vitamins. These phenolic compounds, especially in tea, not only prevent cell proliferation in skin and lung tumor formation but also prevent the growth of this tumor. While one study stated that 35-45% of the antioxidants taken by the diet were caused by tea flavonoids, the results that supported the increase in the number of antioxidants that increase the temperature of the tea during brewing were found.
There are many benefits of black tea. The benefits of tea do not stop counting. Green tea has more antioxidant effects than black tea. Tea, which has high antioxidant activity, LDL (bad cholesterol as it is known among the people) delays the oxidation of cholesterol and reduces its amount in the blood. Given this situation, it should not be overlooked that tea also reduces the risk of heart disease.
Another benefit of tea; While regular tea consumption protects against chemical carcinogens that cause lung, esophagus, pancreas, breast, liver and colon cancer formation, it has been shown in some studies that cancer prevents the stages of onset, progression and transformation.
It has Benefits for Heart Health
Black tea contains an antioxidant group called flavonoid, which is beneficial for heart health. Along with the tea, flavonoids can be found in vegetables, fruits, red wine and dark chocolate. Regular consumption of flavonoids can help reduce many risk factors for heart disease, such as high blood pressure, cholesterol and triglyceride levels, or obesity.
A randomized controlled study found that drinking black tea for 12 weeks reduced triglyceride values by 36%, blood sugar levels by 18%, and reduced LDL / HDL plasma by 17%. Another study found that those who drank three cups of black tea a day had an 11% reduction in risk of developing heart disease.
Tea also seems to be effective in lowering blood pressure. In a randomized, controlled study, those who drank three cups of black tea a day for six months showed a significant reduction in systolic and diastolic blood pressure compared to the placebo group.
Antioxidant and Anticarcinogenic
There are antioxidants in tea. This reduces the risk of bad cholesterol and heart attacks in the body to the lowest levels. In addition, in people who regularly consume tea, the growth of cancerous cells is also prevented.
There are more antioxidants in tea than fruits and vegetables. In addition to all these, according to the statements made by Dutch scientists; Drinking a cup of tea is said to be very beneficial to the brain.
Tea is also known to help rest the body. In a study, they concluded that approximately 44 people under the age of 40 drink tea and work much more efficiently and are more careful.
It was observed that the feelings of tiredness of these people participating in the study decreased and their focus levels increased significantly. As a result, it was found that drinking 4 cups of tea daily is very beneficial for health.
In another research conducted; The immune system of people who regularly consume tea is found to be 5 to 6 times stronger than a normal person.
Substance named alkylmanin in tea; It turned out that it can fight parasites and bacteria. In addition, the amino acid triptopan in tea has a soothing effect on human beings.
It Helps Reduce Stroke Risk
Another interesting result from the studies on black tea is that it reduces the risk of stroke.
A study of more than 10 years, 74,961 people found that those who drank four or more cups of black tea a day had a 32% lower risk of stroke than those who did not.
A study evaluating different studies found that individuals who drink more than three cups of tea (black or green tea) daily have a 21% reduced risk of stroke than those who drink less than one cup of tea a day. As these results come from observational studies, more studies are needed to confirm.
Black Tea can Lower Blood Sugar Levels
Since black tea contains molecules that are found to help increase the use of insulin in the body, positive effects on blood sugar have been discovered when it is drunk unflavored.
In a laboratory study on cells, insulin-enhancing properties of tea and its components were investigated. The results showed that black tea increased insulin activity more than 15 times.
In addition, a compound called epigallocatechin gallate in tea has been found to improve insulin levels. Black tea is seen as a very useful drink in this respect. 2 or 3 cups can drink, but not much during the day.
It Supports Mental Health
Regular tea consumption has been associated with low risk of neurological disease and reduced stress level. Green tea consumption has also shown promise in preventing cognitive decline due to brain disease, such as Parkinson’s disease and Alzheimer’s.
Tea offers natural calming effects that can reduce stress and help you rest after a hard day. Tea contains antioxidants that try to prevent oxidative stress, which can damage healthy cells. Antioxidants in tea eliminate free radicals from pollution and other factors that cause oxidative stress. Oxidative stress has been associated with dementia and depression.
Antioxidants also help remove toxins from the body that can cause mental health problems. Tea drinkers have been shown to have lower stress levels and improve overall health with regular consumption.
It Helps Digestion
Tea helps facilitate digestion. It can treat a range of problems ranging from nausea to diarrhea. Tea also contains tannins that have been shown to reduce inflammation of the intestine. This can help soothe stomach cramps and treat irritable bowel syndrome.
The polyphenols found in black tea can promote the growth of good bacteria, while preventing the growth of bad bacteria such as Salmonella, it can help maintain a healthy gut balance.
In addition, black tea contains intestinal bacteria and antimicrobial properties that increase immunity, which kill harmful substances and help repair the inner surface of the digestive system.
It Helps Eliminate Foot Odor
It’s your feet. If you have a problem with your feet smelling; Pour warm tea into a basin. Put your feet in for about 10 minutes before going to sleep every day. When you apply this application for about 10 days, there will be no smell on your feet.
Tea is known to be effective in treating feet. It especially removes sweating and smelling foot problems. It also closes the pores and prevents frequent sweating.
You can also use chilled tea bags to soothe rashes, redness and itching in razor cuts and burns. If you are looking for a solution to foot odor, it may be a natural option.
Some Harms of Black Tea
As with any food, consuming too much tea can cause some negative effects. So it means black tea has some harms. Since everyone’s metabolism, genetic predisposition, and eating habits are different, they may be affected by the possible side effects of tea in different doses. In other words, while some people start to experience some side effects after 3 cups of tea, some may start to live after 5 cups of tea. Therefore, you need to try what works for you.
It Provides Low Iron Absorption
Tea is a beverage rich in a class of compounds called tannins or tannic acid. Tannins can bind iron in foods and cause iron to be blocked from the digestive system. As a result, iron deficiency may occur in your body. Iron deficiency is one of the most common mineral deficiencies observed in the world. Therefore, those with low iron levels should pay attention to tea consumption. You can see the benefit of iron in the foods you eat less, especially when you drink tea with breakfast.
Studies show that iron in animal foods interacts less with tannic acid in tea. In contrast, the absorption of iron from herbal sources is further hindered by tannins. Therefore, those who follow a vegetarian or even a vegan diet need to pay more attention to how much tea they consume.
While the amount of tannic acid contained in tea varies depending on the type of tea or how it is brewed, the general belief is that less than 3 cups of tea are safe for humans. If you have a low iron content but still enjoy drinking tea, you can drink tea between meals as an extra precaution. Thus, the possibility of blocking the iron taken at meal times will be reduced.
It May Cause Anxiety and Stress
Tea leaves naturally contain caffeine. Although it is known to many people that excessive caffeine consumption causes insomnia, few people know that stress, anxiety, and restlessness can be caused by caffeine.
240 ml. placed in a cup that takes liquid in size, 11 to 61 mg according to the brewing method. may contain caffeine.Black teas contain more caffeine than green and white varieties, and the longer the tea is brewed, the higher the caffeine content.
Although some people are more sensitive to caffeine than others, studies show that doses below 200 mg per day do not cause these counted negative effects.
Drinking caffeine such as tea during pregnancy may increase the risk of complications such as low and low baby birth weight.
Data on the dangers of caffeine during pregnancy are still not fully established. However, keeping your daily caffeine intake below 200 mg during pregnancy is a useful measure.
If you are pregnant and have concerns about your intake of caffeine or herbal tea, you should consult your healthcare provider.
It can Cause Headache
Intermittent caffeine intake can help ease certain types of headaches. However, when used chronically, it may have the opposite effect. Caffeine consumption should be considered in chronic headaches, the cause of which cannot be explained.
For this reason, it can be checked whether the drinks containing caffeine such as tea or coffee are reduced or stopped for a while or not.