2023-05-21 18:35:06
Last update: 5/22/202301:28 AM (Mecca time)
On May 21 of each year, the world celebrates the International Tea Day, and on this occasion we learn about the benefits of this drink, and highlight health conditions whose owners are advised to reduce it.
Tea is a drink made from the Camellia sinensis plant, and it is the most consumed beverage in the world after water. It is believed that the consumption of tea began in northeastern India, northern Myanmar and southwestern China, but the exact place where the plant first grew is unknown, and there is evidence that it began to be consumed in China 5,000 years ago, according to United Nations website.
Drinking tea has health benefits due to its anti-inflammatory, antioxidant and weight loss benefits.
black and green
Tea comes in two forms: black and green, and its type depends on a process called oxidation, in which the leaves turn from green to dark brown, which is also described as black.
Oxidation means that the leaves are exposed to moist, oxygen-rich air, and tea manufacturers can control the amount.
Black tea is fully oxidized tea, while green tea is not.
Conditions and diseases in which the patient is advised to reduce or avoid tea
Most of the negative effects on patients stem from the caffeine present in tea, and this applies to both black and green types.
Therefore, in the following cases and diseases, you should be careful when drinking tea:
1- Breastfeeding
Like many elements in food, caffeine passes into breast milk and can therefore affect a nursing infant.
An infant’s consumption of large amounts of caffeine-rich milk (more than 2-3 cups per day) can cause sleep problems, irritability and increased bowel activity.
2- Anemia
Drinking tea might make anemia worse.
3- Anxiety disorders
The caffeine in tea might worsen anxiety.
4- Bleeding disorders
The caffeine in tea may increase your risk of bleeding. Don’t drink tea if you have a bleeding disorder.
5- Heart disease
Excessive intake of the caffeine in tea may lead to an irregular heartbeat.
6- Diabetes mellitus
The caffeine in tea may affect blood sugar control. If you drink tea and have diabetes, monitor your blood sugar carefully.
7- Diarrhea
The caffeine in tea, especially when taken in large amounts, can worsen diarrhea.
8- Seizures
High doses of caffeine may cause seizures or reduce the effects of medications used to prevent seizures. If you have ever had an epileptic seizure, do not take high doses of caffeine or substances that contain it, such as tea.
9- High blood pressure
The caffeine in tea might increase blood pressure in people with high blood pressure.
10- Irritable Bowel Syndrome
The caffeine in tea, especially when taken in large amounts, may worsen diarrhea in some people with IBS.
11- Liver diseases
Taking green tea extract supplements has been linked to rare cases of liver damage, and green tea extracts may worsen liver disease. Talk to your doctor before taking green tea extract.
12- Osteoporosis
Drinking tea can increase the amount of calcium that is excreted in the urine, and this may weaken bones. If you have osteoporosis, do not drink more than 6 cups of tea per day.
The maximum amount of tea allowed per day
Drinking tea in moderate amounts is generally safe for most people, and there is no specific appropriate amount, as the wide variation of tea components and quality makes it difficult to determine an ideal amount, however it is advised not to exceed 4 or 5 cups per day.
Although drinking tea in moderation is often considered healthy, excessive consumption may cause side effects.
In contrast, drinking large amounts of tea – more than 4 or 5 cups a day – may cause health problems, mostly due to caffeine-related side effects.
Other side effects of tea
Side effects of tea when drunk in large quantities may include:
- anxiety.
- difficulty sleeping
- Breathing quickened.
- Headache.
- increased urination
- Arrhythmia.
- Nausea.
- vomiting.
- nervousness.
- Insomnia.
- Hypertension.
- Anemia.
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