Black walnut powder is made from the ground nuts of the black walnut tree (Juglans nigra). It is traditionally used to support digestive and respiratory health. Some of the potential health benefits of black walnut powder may include:
 
Supporting digestive health: Black walnut powder is rich in fiber, which can help to support regular bowel movements and prevent constipation. It also contains compounds that may have antimicrobial properties, which may help to kill harmful bacteria in the digestive tract.
Promoting respiratory health: Black walnut powder may help to support respiratory health by reducing inflammation in the respiratory tract and helping to clear mucus and congestion.
Boosting the immune system: Black walnut powder is a good source of antioxidants, which may help to support the immune system by neutralizing harmful free radicals.
Supporting skin health: Black walnut powder is often used in natural skincare products due to its astringent properties, which may help to tighten and tone the skin and mucous membranes.
 
It's important to note that the potential health benefits of black walnut powder have not been extensively studied and more research is needed to fully understand its effects on the body. If you are considering using black walnut powder for its potential health benefits, it's important to speak with your healthcare provider first.