TCM Materia Medica: Walnut
Nuts, in general, are highly nutritious and make an excellent addition to a healthy diet. However, walnuts stand out among other tree nuts as one of the most beneficial. They have the highest concentration of polyunsaturated fatty acids, including alpha-linolenic acid, a form of omega-3. They are also a good source of polyphenols and phytosterols, and various vitamins and minerals, including:
Vitamin E
Folate
Calcium
Magnesium
Potassium
Walnuts have been associated with antioxidant and anti-inflammatory properties, and their potential benefits include a reduced risk of cardiovascular disease, type II diabetes, and some forms of cancer. They are also a good source of fibre, and thought to support gut health by increasing microbiome diversity and increasing the population of beneficial microbes.
In Chinese medicine terms, walnuts are considered warm and sweet, entering the Kidney and Lung to supplement qi and secure essence.
However, their high fat content means that excessive consumption can easily give rise to phlegm, with nausea, vomiting, and sloppy stools. Therefore, they should be enjoyed in moderation and avoided in cases of yin deficiency with effulgent fire, and those with diarrhoea, nosebleeds, or haematemesis.
The full Chinese medicine properties of walnuts are listed below:
Actions:
Supplement the Kidney
Secure essence
Warm the Lung
Stabilise panting
Loosen the bowel
Relieve constipation
Reduce swelling
Detoxify
Indications:
Kidney vacuity
Back and knee ache
Weak back and knees
Erectile dysfunction
Frequent urination
Kidney/Lung qi deficiency
Panting and coughing
Dry stools
Haemorrhoids
Cautions:
Avoid excessive consumption (see above)
Yin deficiency with effulgent fire
Diarrhoea
Nosebleeds
Haematemesis
Related recipes:
For more healthy eating tips according to traditional Chinese medicine, visit the Dietary Therapy section of the website, or book a consultation for personalised advice.