Medicinal Benefits & Uses of Black Walnut

The black walnut tree is abundant in eastern United States and some parts of Canada. The flowers and nut of this tree are harvested and used for many medicinal purposes. The nuts themselves are eaten as harvested and often included in many dishes such as chicken, ice cream, salads, and desserts.

Uses of Black Walnut

Black walnut is rich in omega-3 fatty acids and various vitamins and minerals. You can enjoy black walnut as is or in a powder form or as an oil. Now that you know where to find it and how to consume it, let’s take a look at some of the impressive ways in which black walnut can be used.

1. Fights Fungus

Because black walnut contains juglone and tannins it is able to create an environment within your body that is not hospitable to many fungi, such as candida fungus. Black walnut is also effective against ringworm, Athlete’s Foot, and other fungal infections.

2. Skin Health

You can find black walnut in powder form or make it yourself by grinding up some black walnuts into a fine powder. This powder can then be applied to the skin to help prevent acne and other blemishes, and can help treat eczema and psoriasis. If using all over the face, you may want to mix the powder in with a carrier cream until you know how your skin will react.

3. Digestive Health

Black walnut naturally has anti-inflammatory properties and can soothe inflammation throughout the stomach and digestive and gastrointestinal tracts. Consuming black walnut can help with constipation, diarrhea, stomach cramps, and other digestive issues.

4. Healthy Heart

Thanks in large part to the high amounts of omega-3 fatty acids in black walnuts, these nuts help to regulate cholesterol in the blood and can help the body reduce its amount of LDL cholesterol. Related to the effect, black walnut can also help lower blood pressure and reduce your risk of heart disease, heart attack, or stroke. Try munching on some black walnuts every day for the best cardiovascular benefits.

5. Immune Support

Rich in antioxidants, black walnuts help the body neutralize free radicals, and therefore prevent against many cancers and chronic diseases. Research suggests that the juglone found in black walnut may directly contribute to stopping the growth of cancerous tumors in the body. Omega-3 fatty acids, found in black walnuts, may also help improve and maintain cognitive health.

6. Respiratory Aid

Gargling with warm water and black walnut extract will significantly soothe a sore throat and help with congestion.

How to Use black Walnut

Topical solutions of walnut leaf are well known treatments for mild and superficial eczema and also for excessive sweating on the hands or feet. Typically, the walnut leaves (not the nuts), are dried and chopped prior to boiling, and this makes a strong decoction. Once the tea is cooled it can be used in rinses, compresses, and other solutions that will be applied to the skin. It may also be added to bathwater.

To make a tea (decoction), use one and a half ounces of cut up dried leaves per 8 ounces of water. Bring the mixture to a boil in a small pot and let simmer for about 15 minutes. Allow this to cool before using it in a compress, or other topical way.

When using leaves, add 3 to 5 black walnut leaves to a pot of water. Then bring this to a boil before straining, and then serve the tea. The bark may also be used in a similar fashion. There is a more complex recipe for walnut tea that involves grinding the meat of the walnuts together with dates and rice to make a thick paste. The paste is then sieved through muslin or cheesecloth and then added to sugar and water before heating and serving.

Put the rice in a bowl and add just enough water to cover it. Let this soak overnight. Drain the rice the next day. Fill two sauce pans with water and then bring them to a boil. Remove the seeds from the dates and boil until the skin is easily removed. Boil the walnuts in the other pan for 10 minutes to blanch them, and then remove the skins. Put the walnuts, dates, and rice into a blender.

Mix the paste with 3 cups of water. Use a muslin bag to squeeze the liquid from this paste into a bowl. To the liquid, add 2 cups of sugar and 3 cups of water. Simmer this liquid in a pan for 10 minutes. The tea is now ready to be served. Alternatively, omit the sugar and add honey at the end, when it cools.


With all of these benefits found in black walnuts, you’ll want to include them in your diet as often as possible. Luckily, this is easy enough to do; you can snack on a handful of black walnuts, incorporate black walnut oil into your cooking, or find black walnut powder and/or extract in your local health food store.

Unless you are allergic to nuts, there are relatively no negative side effects to consuming black walnuts. Sprinkle some onto your foods and you’ll be on your way to a healthier you with minimal effort.


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