Green tea side effects: 5 people who should avoid drinking it

Did you know green tea too has caffeine content? (Picture: Pexels)

• Green tea offers antioxidants and supports heart and brain health
• Limit caffeine if sensitive or have iron deficiency.
• Pregnant women and those on certain meds should consult doctors

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Green tea has numerous health benefits and is recognized as one of the healthiest drinks in the world. Packed with antioxidants, especially catechins, it has been linked to better metabolism, improved heart health and even brain function. Most people also take it for its potential to aid in weight management, detoxification and overall wellness. All of these benefits make green tea an everyday staple in the diet of health-conscious people around the world.

But while green tea is often hailed as a health beverage, it doesn't suit everyone. As with many natural foods and beverages, it’s full of active compounds that can have a range of effects on the body depending on a person’s health status, medication use and tolerance levels. Its caffeine content, tannins and bioactive compounds may sometimes produce undesired side effects or interact with some medical conditions.

As with all things, understanding when green tea is not the ideal option for you will assist you in keeping up with overall health without unnecessary risks.

As green tea has many health benefits, some people need to stop or limit the intake of it due to adverse health effects they can cause, says Delhi-based Dr Rahul Sharma, Clinical Nutritionist and Senior Consultant, Vinayak Healthcare.

Also read: 38-year-old physician reverses fatty liver, high bp, high cholesterol, type 2 diabetes, drops 56 kilos in 18 months

People sensitive to caffeine

While green tea has less caffeine than coffee, it still contains enough to influence those who are sensitive to stimulants. Sensitive individuals may have symptoms of restlessness, anxiety, rapid heartbeat or difficulty sleeping after drinking tea green.

Individuals already suffering from insomnia or nervousness can experience worsened symptoms with green tea, particularly if taken in high dosages or later in the day.

Individuals with Iron Deficiency

Tannins in green tea can inhibit the absorption of iron from non-heme, plant-based foods. This can be especially worrying in those that are already low on iron, or are at the risk for iron deficiency anemia.

Frequent consumption of green tea with or right after a meal can negatively impact the body’s ability to absorb vital nutrients, which may eventually lead to iron deficiency over time if not watched.

Pregnant and Breastfeeding Women

Moderation is particularly essential for pregnant or breastfeeding women. Green tea contains caffeine, which is capable of crossing the placenta during pregnancy and potentially affecting the developing fetus if consumed in high amounts.

Furthermore, consuming more than the recommended amount of caffeine when pregnant can potentially lead to complications such as low birth weight or sleep problems in infants.

People with certain digestive issues

People with acidity can experience some problems after drinking green tea, especially on an empty stomach. Tannins in green tea can promote the production of stomach acid, resulting in a feeling of nausea or discomfort. People who suffer from caffeine-sensitive acid reflux or gastritis may find their symptoms react negatively to drinking green tea.

Also read: Doctor says these 3 medicines can save a heart attack patient

Individuals Taking Certain Medications

Green tea can also interact with some medications, including blood thinners, stimulants and certain heart medications. Such interactions may change how the drugs function or how the body responds to them.

And since green tea can have an effect on prescription medications, those taking such medicines should check with a medical professional before having it regularly.

FAQs on green tea

Q. What is green tea?

Green tea is a type of tea made from unoxidised leaves of the Camellia sinensis plant. It is known for its high antioxidant content and is often consumed for its potential health benefits.

Q. What are the main health benefits of green tea?

Green tea contains antioxidants such as catechins that may support heart health, boost metabolism, improve brain function, and help protect cells from damage.

Q. How much green tea can be consumed in a day?

Most experts suggest drinking about 2–3 cups a day. Excessive intake may lead to side effects because of caffeine and certain plant compounds.

Q. Does green tea help with weight loss?

Green tea may support weight management by slightly boosting metabolism and fat oxidation, but it works best when combined with a balanced diet and regular exercise.

Q. Is it safe to drink green tea on an empty stomach?

Drinking green tea on an empty stomach may cause acidity or stomach discomfort in some people. It is often recommended to consume it after meals.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.