Organic black walnut hull chunks on a white background, used as a natural herbal detox supplement.

Black Walnut Hull

Also known as: American walnut, Nogal negro, Juglans nigra, Eastern black walnut

Black walnut hull, derived from the outer shell of the black walnut (Juglans nigra), is a natural supplement that has been used for centuries in traditional medicine. Known for its rich nutrient profile, black walnut hull is packed with essential fatty acids, vitamins, and minerals, including iodine, magnesium, and potassium. This supplement is particularly renowned for its high tannin content, which contributes to its astringent properties. Historically, it has been utilized for its potential health benefits, such as supporting digestive health, promoting skin health, and acting as an antipar...

Potential Side Effects

Side effects score: 3; Black Walnut Hull is a natural supplement that some people use for its potential health benefits, but it can also have side effects. Commonly reported side effects include stomach upset, diarrhea, and nausea, which can occur if taken in large amounts. Some people may experience allergic reactions, such as skin rashes or itching, especially if they have a nut allergy. In rare

Health Categories

View efficacy ratings for Black Walnut Hull across multiple health categories.

Research & Evidence

Our efficacy ratings are based on scientific research and clinical studies.

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