Consuming excessive amounts of matcha can lead to several uncomfortable and potentially harmful effects, primarily due to caffeine overconsumption and tannin overload. "Too much" typically means more than 3-4 servings (3-4 teaspoons) per day.
Immediate effects of matcha overconsumption:
Long-term risks of chronic overconsumption:
What to do if you've consumed too much: Drink plenty of water, eat food to settle your stomach, avoid additional caffeine, and rest. Symptoms typically resolve within a few hours. If you experience severe symptoms like chest pain or difficulty breathing, seek medical attention immediately.