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Black Walnut

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What other names is Black Walnut known by?

Carya, Carya basilike, Carya persica, Green Black Walnut, Green Walnut, Juglans nigra, Jupiter's Nuts, Nogal Americano, Nogal Negro, Nogueira-preta, Noix, Noix de Jupiter, Noix de Perse, Noix Verte, Noyer d'Amérique, Noyer Noir, Noyer Noir Américain, Nux persica, Nux regia, Schwarze Walnuss, Walnoot, Walnut.

What is Black Walnut?

Black walnut is a tree. People use the outer covering of the nut (the hull) to make medicine.

Black walnut is used to treat parasitic worm infections and certain other infections including diphtheria and syphilis. It is also used for leukemia.

Some people use black walnut as a gargle, apply it to the scalp as hair dye, or put it on the skin to treat wounds.

Insufficient Evidence to Rate Effectiveness for...

  • Leukemia.
  • Diphtheria.
  • Syphilis.
  • Intestinal worms.
  • Use as a gargle.
  • Skin wounds.
  • Other conditions.
More evidence is needed to rate the effectiveness of black walnut for these uses.

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).

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