Who Should Not Drink Green Tea? | Hidden Side Effects and the Best Time to Consume This Popular Beverage

Sunday, May 17, 2026

Saed News: Green tea is considered one of the healthiest beverages due to its powerful antioxidants such as catechins and polyphenols. However, consuming it is not suitable for everyone, and in some situations it may cause side effects.

Who Should Not Drink Green Tea? | Hidden Side Effects and the Best Time to Consume This Popular Beverage

According to SAEDNEWS, knowing the contraindications and the proper time to drink green tea helps you benefit from its advantages without harming your body.

People with Iron-Deficiency Anemia

Green tea can reduce the absorption of non-heme iron (plant-based iron). Therefore, people with anemia should consume green tea at least 1 to 2 hours apart from meals.

People with Sensitive Stomachs or Acid Reflux

The caffeine and acidic compounds in green tea may irritate the stomach and cause heartburn or nausea, especially if consumed on an empty stomach.

People with Low Blood Pressure

In some individuals, green tea may lower blood pressure and cause dizziness or weakness.

People with Anxiety or Heart Palpitations

Although green tea contains less caffeine than coffee, it can still increase heart rate or cause restlessness.

Pregnant and Breastfeeding Women

Due to its caffeine content, excessive consumption of green tea during pregnancy and breastfeeding is not recommended and should be discussed with a doctor.

Hidden Side Effects of Excessive Green Tea Consumption

  • Sleep disturbances

  • Headaches and restlessness

  • Reduced absorption of certain minerals

  • Stomach irritation when consumed on an empty stomach

Drinking more than 3 to 4 cups per day may worsen these side effects.

Best Time to Drink Green Tea

The best time to drink green tea is between meals, preferably in the mid-morning or afternoon.

Avoid consuming it on an empty stomach or close to bedtime to prevent digestive issues or insomnia.

Overall, if consumed in moderation and at the right time, green tea can be part of a healthy diet. However, understanding its limitations is the key to using this beneficial beverage safely.