Spam (stylized as SPAM) is a brand of canned cooked pork made by Hormel Foods Corporation. It was introduced by Hormel in 1937 and gained popularity worldwide after its use during World War II. By 2003, Spam was sold in 41 countries on six continents and trademarked in over 100 countries.Spam's basic ingredients are primarily pork shoulder and ham, with salt, water, modified potato starch (as a binder), sugar, and sodium nitrite (as a preservative). Natural gelatin is formed during cooking in its tins on the production line. Many have raised concerns over Spam's nutritional attributes, in large part due to its high content of fat, sodium, and preservatives.It has become the subject of a number of appearances in pop culture, notably a Monty Python sketch, which repeated the name many times, leading to its name being borrowed for unsolicited electronic messages, especially email.