Green Tea Side Effects
Green Tea Side Effects

The trend of green tea drinking in India is increasing at a very fast pace. Most people consider green tea beneficial to health, which is also true to a large extent. At the same time, due to these benefits, many people start consuming it excessively, which is not right for health. Excessive intake of green tea can lead to loss of green tea. Keeping this in mind, the topic of this article of Stylecrase has been chosen to harm green tea drinking. Our aim is to increase awareness about its use by highlighting green tea side effects. Keep reading this article to know the harm of green tea.

Before the loss of green tea, we know what green tea is.

What is green tea?

Green tea is a special type of tea made from the leaves of a plant called Camellia sinensis. The trend of this tea is very high in India as well as China, Japan and Thailand. It contains more catechins than black and oolong tea, which is a type of antioxidant. The vitamins and minerals present in this tea work to increase its antioxidant capacity. The benefits of green tea for health are many. It also has anti-cancer, anti-aging and anti-diabetic properties ( 1 ). At the same time, excessive intake of it can be harmful to health and can be the cause of the problems mentioned below.

Read Green Tea Side Effects in this section of the article.

Side effects of green tea in green tea

  1. Excessive Caffeine – Green tea can be beneficial for health, but it should not be forgotten that green tea contains caffeine. There is 12 mg of caffeine per 100 grams of green tea ( 2 ). Caffeine is a bitter element, which is found in many other foods along with tea in a natural way ( 3 ). Excessive caffeine intake can have a bad effect on health. An overdose of caffeine can cause problems such as dizziness, insomnia, dehydration, nausea, vomiting, and discomfort ( 4 ).
  2. Iron deficiency – According to WHO, anemia affects 1.62 billion people worldwide ( 5 ). Iron deficiency is one of the main causes of anemia and excessive intake of green can cause iron deficiency in the body. Actually, this is revealed in a research related to this published on the website of NCBI (The National Center for Biotechnology Information). Research states that excessive intake of tea can inhibit the absorption of iron in the body, leading to iron deficiency and an increased risk of anemia.
  1. Cause of muscle weakness – Loss of drinking green tea also includes muscle weakness. This information comes from a case study available on the NCBI website, in which a 49-year-old man had muscle weakness for a few days. During the blood test, the person was confirmed to have hypokalemia (lack of potassium in the blood), causing muscle pain. However, supplementation of potassium by the doctor soon saw an improvement in her condition.
    During the medical examination, when his dietary information was obtained, it was found that two weeks before he had muscle weakness, he was consuming a lot of beverages made from extracts of green tea. Case studies showed that excessive intake of caffeine present in green tea may increase the risk of hypokalemia ( 8). In such a situation, it is our opinion that green tea should be consumed in balanced quantities.
  2. Weak bones – Weak bones can also be one of the green tea side effects. As we mentioned above, caffeine is present in green tea. In such a situation, excessive intake of green tea can also affect the bones. Indeed, according to studies done on the health effects of caffeine, excessive intake of caffeine can inhibit calcium absorption in the body. The effect of which can lead to thinning of bones and result in bone disease like osteoporosis ( 9 ).
    Not only this, another research related to this has shown signs of spinal weakness due to excessive intake of caffeine in postmenopausal women. In such a situation, we would advise that to avoid the problem of bones, green tea should be consumed in a balanced manner ( 10 ).
  3. Liver problems – According to one study, green tea can cause liver damage in some cases. This may be followed by EGCG (a type of catechin), which may exhibit hepatotoxicity (toxic to the liver) effect. At the moment, further research is still needed on this topic ( 11 ).
  1. GERD – GERD (GERD – Gastroesophageal Reflux Disease) is a condition in which they arrived at the hose elements food in the stomach. It is a type of digestive problem in which there may also be a problem of heartburn ( 12 ). If we talk about the loss of green tea, then Japanese scientists found that excessive intake of green tea and sluggish lifestyle can increase the risk of GERD ( 13 ). At the same time, another study conducted on the Asian population found that an ingredient called theophylline in tea may cause fatal acid reflux ( 14 ).
  2. Dehydration – Green tea side effects also include dehydration. Actually, it can act like a natural diuretic (diuretic). If excessive green tea is consumed, there may be a problem of frequent urination, which can cause dehydration ( 15 ). In such a situation, it is better to consume green tea in balanced quantities.
  1. Stomach problem – Drinking green tea can also cause stomach problems . Actually, the caffeine present in green tea may be the reason. Excessive intake of caffeine can cause stomach upset or other stomach problems ( 3 ). If more than five cups of green tea is consumed in a day, then there may be a problem like stomach ache or stomach upset ( 15 ) ( 16 ). If someone already has stomach problems, they should consume it only after the advice of the doctor.
  2. Dizziness and vomiting – Green tea loss includes dizziness and vomiting. The reason for this can also be attributed to the caffeine present in green tea. Actually, excessive caffeine intake can have a negative effect on the nervous system, causing problems such as dizziness, restlessness, confusion and insomnia. In addition, it can also cause discomfort such as nausea or vomiting ( 15 ).
  1. Harmful in pregnancy – Medical advice is necessary before the consumption of caffeine-containing beverages during pregnancy. Caffeine can get into the placenta in the pregnant’s blood, which can have an adverse effect on the fetus. Excessive caffeine intake may impede fetal development ( 9 ). Consuming more than 300 mg of caffeine during pregnancy can not only pose a risk of high blood pressure in the pregnant but also increase the duration of pregnancy ( 17 ). At the moment, further research is still required.

Further know that in order to avoid the harm of drinking green tea, what quantity of green tea should be consumed in a day.

How much green tea should be consumed in a day?

Up to three cups of green tea can be consumed in a day. One teaspoon of green tea can be used in one cup (about 236 ml) of warm water ( 18 ). At the same time, pregnant women can consume one to two small cups of caffeine-containing beverages. Pregnant women should take care not to consume more than 200mg of caffeine per day ( 15 ). In addition, green tea also contains EGCG (a type of catechin). A research related to this on the NCBI website has shown that intake of up to 338 mg of EGCG in a day can be safe.

However, our opinion in this matter is that even if there is scientific evidence, before taking green tea, people should also consult the doctor once. Every person’s health and body’s needs are not same, in such a situation, it is also necessary to seek medical advice.

Next know which people should not consume green tea.

Which people should not drink green tea?

People suffering from the following problems should not consume green tea

  • People who have anemia (anemia problem), do not consume green tea. As we mentioned above, green tea can act to inhibit the absorption of iron in the body.
  • People suffering from hypokalemia (lack of potassium in the body) should not consume green tea. According to a case study on the NCBI website, green tea can cause hypokalemia and in such cases its consumption can make the problem even more complicated.
  • If a person is taking warfarin (Warfarin – blood clotting drug), then avoid green tea. Green tea contains vitamin-K, which can have a bad effect on the function of the drug.
  • Patients with heart disease are advised not to consume green.

Mostly taboo, meaning anything is very harmful. Keeping this in mind, we have given information about the harm of drinking green tea. Our aim in this article is to raise awareness among people about the harm of green tea. In such a situation, before taking green tea, take note of the precautions mentioned in the article. To avoid the loss of green tea, consume it in balanced amounts and avoid it under the stated circumstances. Hopefully this article will prove beneficial for you. For other information related to green tea side effects, please take the help of the comment box below.


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