Can Houttuynia cordata prevent influenza, and what is the recommended dosage?

Influenza, commonly known as the flu, is generally not directly preventable through the consumption of Houttuynia cordata (fishy-smelling herb) as food. While moderate consumption of Houttuynia cordata as a culinary ingredient may offer certain health benefits, it cannot directly prevent influenza. If used medicinally, it should be taken under professional guidance, with a single dose typically not exceeding 30 grams. Detailed explanations are as follows:

If Houttuynia cordata is consumed as a vegetable in daily meals, for example, by adding a small amount to soups or cold dishes, its components may help maintain normal body functions and enhance resistance to some extent. However, it cannot directly prevent influenza. In such cases, additional preventive measures are necessary.

Attempting to prevent influenza by consuming large amounts of Houttuynia cordata or taking it internally as medicine according to medicinal dosages without guidance may cause gastrointestinal discomfort and other issues due to improper dosage. Moreover, relying solely on Houttuynia cordata alone is unlikely to effectively protect against the influenza virus. Caution should be exercised in such cases, and professional advice should be sought.

When consuming or using Houttuynia cordata, it is important to control the quantity and avoid long-term or excessive use. If any adverse reactions occur after consumption, discontinue use immediately. If you wish to use it as an adjunct for preventing influenza, consult a healthcare professional to determine the appropriate method and dosage.