Walnuts are highly nutritious, full of antioxidants and anti-inflammatory compounds. They are known for supporting heart, liver, and brain health. Walnut leaves can be used to treat diarrhea, purify the blood, and expel intestinal worms. Walnut hull (husk) or leaf tincture can help treat skin conditions from acne, psoriasis, eczema, to athlete’s foot or ringworm. Black walnuts are commonly used to purge and balance the digestive tract.