You should never exceed the recommended daily dosage of Reishi (1 to 5 grams of powder and 1 to 3 capsules) or extend the consumption for a period of time longer than indicated by your physician or the manufacturer. This is particularly important in the case of Ganoderma lucidum powder supplements, as they can produce severe liver toxicity.
Ground Reishi and the powdered extract should not be taken for more than one month consecutively, while the capsules can be taken for up to three months. Reishi mushrooms are a short-term supplement used to improve a specific aspect of health or to help treat a condition.