No one knows from where it has appeared. The most possible is that it grew in Mexico, Central America. It is the major element of Americans food, and corn vodka used to healing arthritis, teeth pain, caugh, and much more problems and illnesses.
Corn is considered as one of the most delicious and avaliable sources of selenium. In corn there is almost no amino acid tryptophan, that is not only destoys vitamin PP, but also other carcinogenic elements. This means that feeding corn leads to the development of avitaminosis PP. And reasonable usage of corn is factor in prevention of cancer and aging. So handfull of cornflex, with mlk, but witout sugar! - can play big role in preventing cancer.
Corn can stop processes of fermentation and putrefaction in the intestines, what gives a basement including it in diet with enterocolitis. In corn seeds there are starch, fat oil, vitamin B1, B2, B6, PP, biotine, nicotine acid, quercetin (vitamin P) and fiber. In the stigmatic hairs and maize contains B-sitosterol, sigmasterin, fatty oil, there is a volatile oil, resin, gum, chlorophyll, bitter glycosides, saponins, ascorbic and pantothenic acid, vitamins B1, B2, B6, D, E , R, inositol. Among the minerals there is gold.