Can Ophiopogon japonicus (Lungwort) be eaten?
Generally speaking, Ophiopogon japonicus (Maidong) can be consumed, but it should be taken in moderation. A detailed explanation is as follows:

Ophiopogon japonicus can be eaten directly or consumed by soaking in water, cooking into porridge, or stewing in soups. Chewing fresh Ophiopogon directly allows for immediate absorption of its nutrients and offers a refreshingly sweet taste. Drinking it after soaking in water is a common method, allowing its active components to dissolve in water, helping replenish body fluids and relieve symptoms such as dry mouth. Adding it to porridge or soups allows for flavor integration while exerting its effects of nourishing yin and relieving dryness, making it suitable for regular dietary consumption.
When consuming Ophiopogon japonicus, it is important to control the quantity regardless of the method used, as excessive intake may cause gastrointestinal discomfort such as bloating and diarrhea; individuals with spleen and stomach deficiency cold or frequent loose stools should avoid consumption to prevent exacerbation of internal coldness and gastrointestinal strain; those experiencing cold-dampness cough or excessive phlegm-dampness should also avoid it to prevent worsening symptoms; special populations such as pregnant women, children, or individuals currently taking other medications should consult a healthcare professional before consumption to ensure safety and minimize risks.