Spam (stylized SPAM) is a brand of canned precooked meat products made by Hormel Foods Corporation. It was first introduced 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. In 2007, the seven billionth can of Spam was sold.
According to its label, Spam's basic ingredients are pork shoulder meat, with ham meat added, salt, water, modified potato starch as a binder, sugar, and sodium nitrite as a preservative. Natural gelatin forms during cooking in its tins on the production line. Many have raised concerns over Spam's nutritional attributes, as Spam contains almost double the amount of fat compared to its protein content.
By the early 1970s the name "Spam" was often misused to describe any canned meat product containing pork, such as pork luncheon meat. With expansion in communications technology, it became the subject of urban legends about mystery meat and other appearances in pop culture. Most notable was a Monty Python sketch portraying Spam as tasting horrible, ubiquitous and inescapable, characteristics which led to its name being borrowed for unsolicited electronic messages, especially spam email.(Wikipedia)