Komatsuna (小松菜), sometimes called Japanese mustard spinach, is a leafy green widely enjoyed in Japan. It has a mild flavor — somewhere between spinach and bok choy — and can be eaten raw in salads, lightly stir-fried, or simmered in soups.

In Traditional Chinese Medicine (TCM), komatsuna is believed to enter the Lung and Liver channels, helping replenish yin fluids and ease dryness. It’s also thought to cool excess heat in the body, calm irritability, and support natural detoxification. 
From a nutritional perspective, komatsuna is rich in calcium, iron, potassium, and vitamin C, making it a wonderful green for both strength and vitality. In Japan, we enjoy it in soups, stir-fries, and even blended into smoothies for a refreshing boost.

Yakuzen Classifications
Nature – Cool（涼）
Channels – Lung (肺), Liver (肝), Stomach (胃), Large intestine (大腸)
Flavor – Pungent (辛), Sweet (甘)

How does komatsuna help you?

1. Nourish the yin and moisten the organs
2. Clear excess heat from the body
3. Support natural detoxification

Good for the following symptoms

1. Indigestion
2. Irritability
3. Chronic constipation due to dryness

Cautions

• Always consider your body condition before choosing foods.
• Avoid eating too much of one food at once.
• Do not consume foods you are allergic to.
• Some foods may not be suitable if you are pregnant or have certain health conditions — consult your doctor before starting Yakuzen.