Nuez de la India can cause extreme stomach pain and vomiting, breathing problems and even death, according to WebMD. Raw seeds contain a cyanide-like chemical and can be poisonous.
Because of the effect it has on the digestive system, Nuez de la India is used as a weight loss tea, using only a tiny amount of a portion of one crushed seed to make a glass of hot tea, according to Nuezdelaindia.org. The tea is consumed once each evening. It is also used to treat asthma, diarrhea and constipation, and it can be used topically on the scalp to promote hair growth, states WebMD. Notably, no studies have confirmed its effectiveness.
A bark extract is used in traditional Japanese folk medicine to treat tumors, according to Drugs.com. Nuez de la India is also known as tung, abrasin, balucanat, Indian walnut, kukui, otaheite walnut and varnish tree, according to the Natural Database. It also goes by candlenut, candleberry, China-wood oil and country walnut, among other names listed on emedicinehealth.com. Its oil has been used is making soaps, linoleum and insulation, and it has been used as a preservative and varnish for wood because it dries faster than linseed oil, as stated on Drugs.com.