Can patients with acute laryngitis consume matcha?

Generally, if symptoms of acute laryngitis are mild and there is no known allergy to matcha, small amounts may be consumed. However, consumption should be avoided if symptoms are severe or if any discomfort occurs. If in doubt, it is advisable to consult a healthcare professional beforehand. Detailed analysis is as follows:

If acute laryngitis is in the recovery phase—meaning symptoms such as sore throat and hoarseness are mild—and the patient has previously consumed matcha without experiencing allergic reactions or gastrointestinal discomfort—small amounts of mild matcha products, such as unsweetened warm matcha water, may be consumed. In such cases, moderate intake typically does not irritate the throat or worsen inflammation, and can help maintain hydration.

However, if acute laryngitis is in an active phase—with obvious throat redness, swelling, pain, coughing, or difficulty swallowing—or if the individual is sensitive to matcha ingredients, consumption is not recommended. Caffeine in matcha may irritate the throat mucosa and exacerbate discomfort. Moreover, matcha products with high sugar content or coarse textures may further irritate the throat and impair recovery from inflammation.

Diet during acute laryngitis should focus on mild, light, and easily swallowed foods. Drinking plenty of warm water is encouraged. If throat discomfort worsens after consuming matcha, discontinue use immediately and seek medical advice promptly.