Disadvantages of consuming too much green and black tea

Disadvantages of consuming too much green and black tea

Recent studies show that drinking too much black and green tea, for example more than five glasses a day, due to caffeine may have mild to severe side effects.

Some of these side effects can include headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremors, heartburn, dizziness, ringing in the ears, seizures and dizziness. Excessive consumption of black and green tea or other caffeinated beverages can also cause psychological dependence.

Therefore, it is necessary to pay attention to some precautions and special warnings in this regard:
Pregnancy and lactation: If you are pregnant or breastfeeding, do not consume more than 2 glasses of black and green tea a day. This amount of tea provides about 200 mg of caffeine. Overdose during pregnancy is probably unsafe and may be associated with an increased risk of miscarriage, an increased risk of Sudden Infant Death Syndrome (SIDS), and low birth weight.

For a breastfeeding mother, drinking more than three cups of black and green tea a day may increase the baby’s irritability and increase bowel movements.

Anemia: Drinking black and green tea may make anemia worse in people with iron deficiency. It is better to avoid tea, which includes black, green, herbal, etc., from one hour before meals to two hours after meals, especially lunch.

Anxiety Disorders: The caffeine in black and green tea may increase anxiety.

Bleeding disorders: There are reasons why the caffeine in black tea can slow blood clotting, although this has not been shown in people, but if bleeding disorders occur, use caffeine with caution.

Heart problems: The caffeine in black and green tea causes irregular heartbeats in certain people. If you have heart disease, limit caffeine intake.

Diabetes: The caffeine in black tea may affect blood sugar. If you have diabetes, do not drink more than two cups of tea a day.

Diarrhea: Caffeine in black and green tea can make diarrhea worse, especially when consumed in large amounts.

Convulsions: Black and green tea contains caffeine. There is a concern that excessive caffeine consumption may cause seizures or reduce the effects of medications used to prevent seizures. If you have ever had a seizure, do not take large amounts of caffeine or caffeinated supplements such as black tea.

Glaucoma: The caffeine in black and green tea may increase intraocular pressure. This increase occurs within 30 minutes and lasts for at least 90 minutes.

In people with a genetic history of cancer such as breast cancer, uterine cancer, ovarian cancer, endometriosis or uterine fibroids, black tea may act like estrogen. Estrogen in these people can increase the risk of cancer. Do not use black tea if you have a condition that gets worse with estrogen exposure.

High blood pressure: The caffeine in black tea may increase blood pressure in people with high blood pressure. However, people who regularly drink black tea or other caffeinated products do not appear to have high blood pressure.

Irritable Bowel Syndrome: The caffeine in black and green tea, especially when consumed in large amounts, may worsen diarrhea and worsen the symptoms of IBS. IBS, or Irritable Bowel Syndrome, is characterized by discomfort, chronic abdominal pain, bloating, and changes in bowel habits for no other reason. Diarrhea or constipation may occur intermittently in affected people. IBS, or Irritable Bowel Syndrome, does not lead to serious conditions in most patients and does not cause permanent damage to the large intestine, but it can disrupt daily life due to side effects. People with this condition are more likely than others to have gastroesophageal reflux disease. IBS is a group of intestinal symptoms that usually go together. Signs and symptoms vary from person to person and from person to person. Irritable bowel syndrome can cause bowel damage in some cases.

Osteoporosis: Caffeine increases the amount of calcium in the urine. This can weaken the bones. So do not consume more than 300 mg of caffeine (approximately 2-3 cups of black tea) per day. Taking calcium supplements may help compensate for calcium loss.

Hyperactive bladder: Caffeine may increase the risk of overactive bladder. The caffeine in black tea may also make symptoms worse in people with overactive bladders.

Hypothyroidism: Drinking three cups of green and black tea a day provides all the fluoride needed by the adult body. At the same time, excessive intake of fluoride (more than 3 cups of tea) may cause hypothyroidism.

According to the information base of the Community Nutrition Improvement Office of the Ministry of Health, it should be noted that the disadvantages of high consumption of black tea, which is mainly due to caffeine, include green tea.