Walnut

What it is

Walnut (Juglans regia) is a large tree (Juglandaceae) up to ~25 m. In herbal practice, the dried leaves are used; a related species is black walnut (Juglans nigra).

Traditional uses

Traditionally used externally for mild superficial skin inflammation and for excessive sweating; internally for gastrointestinal inflammation in some folk traditions. The source also mentions antifungal and antiparasitic narratives for walnut/black walnut preparations.

How it is commonly prepared

• Tea: 150 ml boiling water over 1 teaspoon leaves; steep ~10 minutes; drink twice daily.
• Compress decoction: 2–3 teaspoons leaves in 100 ml cold water; bring to boil; simmer 10–15 minutes; strain and cool for compresses.

Notes on quality and use

Choose a fresh, aromatic product; volatile oils contribute to many of catnip’s traditional properties. Store dried herb away from heat and light.

Safety and precautions

• Avoid use during pregnancy and breastfeeding unless advised by a qualified clinician.
• Do not use if you are allergic to plants in the mint family (Lamiaceae) or if you have known sensitivity.
• If you take sedatives or medications that affect the central nervous system, consult a clinician before use.

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Disclaimer: This page is for educational purposes only and does not provide medical advice. Herbs can interact with medications and may not be appropriate for everyone. If you are pregnant, breastfeeding, have a medical condition, or take prescription medicines, consult a licensed clinician before using any herbal product.