Black Walnut Extract

Black walnut or Juglans nigra is a tree of the family, Juglandaceae and is native to North America. It is a large deciduous tree that can reach a height of about 30 to 40 feet. The bark of the tree is dark gray or black in color and deeply furrowed. This tree is mainly known for its wood and the delicious nuts, that are widely used in making cakes, cookies and pies. However, today, it is also famous for the medicinal properties of its bark, leaves and green hulls of the nuts. The fresh green hulls of black walnuts are nowadays used to prepare herbal supplements.

Black Walnut Uses and Benefits

The bark of this tree, as well as the green hull and the kernel have been renowned for a long time for several medicinal properties. These were primarily used by the Asians and some American Indian tribes to expel intestinal parasites or worms. Its vermifuge properties can be attributed to the presence of tannin and quinone compounds. The kernel of the black walnut is the source of essential fatty acids, proteins and fiber. It also contains iodine and many other trace minerals, which too can play an important role in improving general health and vigor.

It can help to relieve gastrointestinal ailments including, diarrhea and indigestion, due to the presence of compounds like, tannins and juglone. Both the compounds exhibit astringent properties, for which they can help to tighten the skin and the mucous membrane. External application of its extract can also prove effective for curing a number of skin conditions. As has been mentioned already, it can tighten the skin due to its astringent properties, which in turn can help to relieve irritation and infection. Its extract is generally used for skin conditions like, eczema, herpes, acne, psoriasis, warts, ringworm and fungal infections of the skin. Apart from these, its extract can be helpful for alleviating the symptoms of rheumatoid arthritis and gout and for lowering the level of blood sugar. It can also be used for relieving the symptoms of sore throat and for treating thyroid problems, canker sores, asthma, lung disease, constipation, hemorrhoids and for cleaning teeth.

Black Walnut Side Effects

Not much is known about its possible adverse effects on human health. The component 'juglone' found in black walnut is however, toxic to animals. The only major side effect is the allergic reaction that some individuals can experience. Usually, people who are allergic to nuts and pecans are more likely to develop an allergic reaction after taking black walnut and its extracts. Another possible side effect is skin rash, that can result from the topical application of its extract.

Like any other herbal supplement, it should also be used with adequate care and only in appropriate dosage. Moreover, this extract contains a high amount of tannin, for which it is better to avoid its continuous or prolonged use. Pregnant and nursing women should avoid this extract. Lastly, be sure to consult your physician before taking any kind of supplement, herb and medication.