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Matcha Tea Side Effects to Know

Matcha tea, while healthy, may cause sleep issues, digestive upset, and anxiety. It may interfere with iron absorption and medications in sensitive individuals.

  • 18 Jun 2025
  • 5 min read
  • 3 views

Matcha tea has taken the wellness world by storm, with its vibrant yet peculiar green colour and a long list of potential health benefits. But like most things that are beneficial, matcha is best enjoyed in moderation. While it’s rich in antioxidants and has less caffeine than coffee, it can still cause side effects, especially if consumed in excess. Let us understand matcha tea side effects in detail.

Matcha tea side effects

Here are some of the known side effects of matcha tea:

  1. Sleep disruptions: Matcha contains caffeine, which can disturb and interfere with sleep patterns if consumed too late in the day.
  2. Digestive discomfort: Drinking matcha on an empty stomach can lead to nausea or stomach upset due to its high antioxidant content and acidity.
  3. Anxiety and jitters: While matcha's caffeine content is lower than coffee's, it can still cause anxiety or jitteriness in individuals sensitive to caffeine.
  4. Iron absorption issues: Matcha contains tannins and catechins, compounds that can disrupt the absorption of iron (the type found in plant-based foods).
  5. Potential medication interactions: The antioxidants in matcha, particularly catechins, can interact with certain medications and affect their efficacy.

Who should not drink matcha green tea?

Matcha tea should be avoided by:

  • People sensitive to caffeine

Even though matcha has less caffeine than coffee, it can still trigger insomnia, anxiety or jitters in sensitive individuals.

  • Pregnant or breastfeeding women

Moderate consumption is generally considered safe, but excessive caffeine may increase risks during pregnancy or affect the baby during breastfeeding. Consult a healthcare provider for safe limits.

  • Those with heart conditions or high blood pressure

Due to caffeine content, matcha may elevate heart rate or blood pressure in sensitive individuals. Monitoring and medical guidance are advised.

  • People with stomach ulcers or acid reflux

Matcha is acidic and may irritate the stomach lining, worsening symptoms in those with gastritis, ulcers or GERD.

Conclusion

Matcha tea can be a healthy addition to your routine, but it’s important to be aware of its side effects.

And while you take steps toward better nutrition and wellness, don’t overlook the value of a good health insurance policy. Whether it's for managing unexpected health issues or supporting preventive care, having the right health insurance for family ensures peace of mind and access to quality care when it matters most.

Disclaimer: The information provided in this blog is for educational and informational purposes only. It is not intended as a substitute for professional advice, diagnosis, or treatment. Please consult your general physician or another certified medical professional for any questions regarding a medical condition. Relying on any information provided in this blog is solely at your own risk, and ICICI Lombard is not responsible for any effects or consequences resulting from the use of the information shared.

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