Matcha tea is often praised as a “superfood” — full of antioxidants, vitamins, and energy-boosting compounds. It’s become a trendy choice for people looking for a healthier alternative to coffee. But while matcha offers many benefits, there’s a side of the story that doesn’t get talked about enough: potential risks when consumed regularly, especially for people with certain health conditions.
One striking case is that of a 28-year-old woman who ended up with severe anemia after drinking matcha just once a week for around three months.
The Case: Matcha and Anemia
This young woman began enjoying matcha as part of her weekly routine. It seemed harmless — one cup a week doesn’t sound excessive compared to daily coffee or tea habits. However, over time, she began to experience:
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Persistent fatigue
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Feeling unusually cold
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Occasional heart palpitations
Medical tests later revealed she had severe iron-deficiency anemia. Her iron levels were alarmingly low, leading doctors to connect her symptoms to her new matcha habit.
Why Matcha Can Lower Iron Levels
The problem lies in compounds naturally found in green tea, such as tannins and catechins. These plant chemicals are powerful antioxidants, but they also block the absorption of non-heme iron (the type of iron found in plant-based foods).
For people who already have borderline or low iron levels, drinking matcha can make things worse. Over time, this may cause anemia — a condition where the body lacks enough red blood cells to carry oxygen efficiently.
Common Symptoms of Iron-Deficiency Anemia
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Constant tiredness
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Pale skin
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Feeling cold, especially in hands and feet
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Shortness of breath or rapid heartbeat
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Dizziness or lightheadedness
If left untreated, anemia can lead to serious health problems and affect quality of life.
Should You Stop Drinking Matcha?
Not necessarily. Matcha can still be part of a balanced diet, but it’s important to drink it wisely. Here are a few tips to reduce the risk:
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Avoid drinking matcha with meals — especially meals rich in iron.
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Moderation is key — daily or heavy consumption increases the risk.
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Pair iron-rich foods with vitamin C — it helps improve absorption.
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Check your iron levels if you experience unexplained fatigue or weakness.
This case is a reminder that even so-called “superfoods” can have side effects. While matcha is rich in antioxidants and offers many health benefits, it’s not risk-free. If you have low iron levels, are prone to anemia, or follow a vegetarian/vegan diet, be especially cautious.
When it comes to health, balance matters more than trends. Matcha can still be enjoyed — but like all good things, it’s best in moderation.
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