HerbilousOpen the interactive guide

HERB PROFILE · EDUCATIONAL REFERENCE

Black Walnut

Botanical nameJuglans nigra
Plant part usedGreen hull

Important safety information: Avoid internal green-hull use, pregnancy, breastfeeding and tree-nut allergy. Juglone-rich products can irritate skin and digestion; suspected parasites require diagnosis.

Herbal actions

  • Astringent
  • antimicrobial in vitro
  • traditional antiparasitic

Traditional and practitioner uses

These uses are presented for historical and educational context. They are not treatment claims.

  • Historical external use
  • No reliable evidence for parasite cleanses
  • Food use applies to the nut, not green hull

Main constituents

Juglone, hydrolysable tannins, naphthoquinones and phenolics

Preparation overview

Tea: Not recommended. Green-hull products lack reliable efficacy and safety data.

Liquid extract reference: Not recommended for self-dosing

Preparation strengths are not interchangeable. Open the interactive guide for the complete evidence notes and sources available for this herb.

Herbilous provides educational information only. It does not diagnose, prescribe, or replace professional medical advice. Seek urgent care for severe or worsening symptoms.