Individual Herbs Notebook

Hu Tao Ren

Translation: Walnut Seed

Pharmaceutical: Semen Juglandis
Taxonomy: Juglans regia

Other names: Walnut

Category: Herbs that Tonify Yang



Properties: Sweet, warm

Meridans Entered:
Primary: Kidney, Liver and Large Intestine
Extraordinary Vessels: Chong


Traditional Actions/Indications:
  1. Tonifies the Kidneys, replenishes Jing and strengthens the back and knees
    Kidney Yang Deficiency with a Cold and painful back and knees and urinary frequency
    Kidney Jing Deficiency
  2. Warms and astringes the Lungs, resolves cold Phlegm, arrests wheezing and helps the Kidneys grasp Qi
    Lung and Kidney Deficiencies with chronic cough and wheezing that worsens with any exertion
    Kidney unable to grasp Lung Qi
  3. Moistens the Intestines and unblocks the bowels
    Constipation from Deficient Fluids and Blood
    Constipation in the elderly
    Constipation due to injured Fluids following a febrile disorder

Suggested Daily Dosage: 10-30g in decoction, or eaten as food.


Cautions: It is contraindicated in cases of yin deficiency with effulgent fire, cough and loose stool due to phlegm-heat.


Notable Constituents:
  1. Juglone
    Toxic naphthoquinone and isomer of lawsone, the staining compound in henna leaf. It stunts the growth of other plants nearby by inhibiting certain enzymes necessary for mitochondrial respiration. It is used as a herbicide, a food colouring, preservative and dye for cloth, inks and cosmetics. Medicinally it is used for its antibacterial and antifungal properties and being researched a potential cytotoxic and antineoplastic agent in cancer treatments.

Appears in 7 formulae listed on this site: (click to display)
Research Links & References: (click to display)