What are the benefits of drinking water infused with Ophiopogon japonicus (Mai Dong)?

Sep 03, 2025 Source: Cainiu Health
Dr. Sun Lianqing
Introduction
Under normal circumstances, the main benefits of drinking water infused with Ophiopogon japonicus (McDoor) include replenishing body fluids, soothing the throat, supporting lung health, relieving irritability, and assisting in improving metabolism. A detailed analysis is as follows: Additionally, when consuming Ophiopogon water, it is important to adjust the quantity according to individual body constitution, with a recommended dose of 5–8 pieces per serving. Patients with hyperthyroidism who exhibit symptoms of yin deficiency and internal heat may consume a small amount.

Generally speaking, the main benefits of drinking water infused with Ophiopogon japonicus (McDoor) include replenishing body fluids, moisturizing the throat, supporting lung health, relieving irritability, and assisting in improving metabolism. A detailed explanation is as follows:

1. Replenishing Body Fluids

Ophiopogon japonicus is slightly cold in nature and contains various amino acids and polysaccharides. When dissolved in water, these components can directly support the body's process of generating body fluids. When symptoms such as dry mouth, dry skin, and constipation occur due to insufficient body fluids, moderate consumption can promote fluid secretion, alleviate dryness, and is particularly suitable for dry seasons or prolonged air-conditioned environments.

2. Moisturizing the Throat

Ophiopogon japonicus enters the lung meridian and contains effective components that nourish the throat mucosa, reducing the impact of external irritants on the throat. When mild discomfort occurs due to overuse of the voice or irritation from dry air, drinking Ophiopogon water can form a moisturizing layer in the throat, relieving dryness, itching, and foreign body sensations, helping maintain throat comfort.

3. Supporting Lung Health

In traditional Chinese medicine, Ophiopogon japonicus is believed to nourish lung yin. When steeped in water, its nourishing and moisturizing effects can be absorbed by the body. When dry cough with little phlegm or throat pain during coughing occurs due to lung dryness, moderate consumption can moisturize the lungs, reduce dryness-related discomfort, alleviate cough symptoms, and provide some support for daily lung care.

4. Relieving Irritability

Ophiopogon japonicus enters the heart meridian and nourishes heart yin. Sufficient heart yin helps calm emotions. For individuals experiencing irritability, insomnia, or emotional agitation due to long-term late nights or mental stress, drinking Ophiopogon water can relieve internal heat by nourishing heart yin, help stabilize emotions, and assist in improving sleep quality, particularly suitable for those with yin deficiency constitution.

5. Assisting in Improving Metabolism

The polysaccharides in Ophiopogon japonicus play a certain regulatory role in bodily metabolism. Drinking Ophiopogon water moderately can help maintain normal metabolic rhythms while replenishing fluids. It may improve mild symptoms such as dry mouth and fatigue caused by metabolic disorders. However, it should be noted that this effect must be based on a balanced diet and regular作息, and cannot replace professional health management.

Additionally, when drinking Ophiopogon water, it is important to adjust the dosage according to individual constitution, with 5–8 pieces per serving being sufficient. Patients with hyperthyroidism who also exhibit symptoms of yin deficiency and internal heat may consume it in small amounts but should consult a professional first. Patients with hypothyroidism, who typically have cold-deficiency constitutions, should consume it sparingly or avoid it altogether to prevent worsening symptoms. Furthermore, excessive long-term consumption should be avoided to prevent gastrointestinal issues.