Raw fatback being diced to prepare tourtière. Lard has always been an important cooking and baking staple in cultures where pork is an important dietary item, the fat of pigs often being as valuable a product as their meat.[4] During the 19th century, lard

o oil. In general, lard is similar to tallow in its composition.[17] Pigs that have been fed different diets will have lard with a significantly different fatty acid content and iodine value. Peanut-fed hogs or the acorn-fed pigs raised for Jamón ibérico therefore produce a somewhat different kind of lard compared to pigs raised in North American farms that are fed corn.[2][18]
History and cultural use



Raw fatback being diced to prepare tourtière.
Lard has always been an important cooking and baking staple in cultures where pork is an important dietary item, the fat of pigs often being as valuable a product as their meat.[4]
During the 19th century, lard was used in a similar fashion as butter in North America and many European nations. Lard was also held at the same level of popularity as butter in the early 20th century and was widely used as a substitute for butter during World War II. As a readily available by-product of modern pork production, lard had been cheaper than most vegetable oils, and it was common in many people's diet until the industrial revolution made vegetable oils more common and more affordable. Vegetable shortenings were developed in the early 1900s, which made it possible to use vegetable-based fats in baking and in other uses where solid fats were called for. Negative publicity was generated by the Upton Sinclar novel The Jungle which, though fictional, contained images of men falling into rendering vats and being sold as lard.
By the late 20th century, lard had begun to be considered less healthy than vegetable oils (such as olive and sunflower oil) because of its high saturated fatty acid and cholesterol content. However, despite its reputation, lard has less saturated fat, more unsaturated fat, and less cholesterol than an equal amount of butter by weight.[2] Unlike many margarines and vegetable shortenings, unhydrogenated lard contains no trans fat. It has also been regarded as a "poverty food".[4]
Many restaurants in the western nations have eliminated the use of lard in their kitchens because of the religious and health-related dietary restrictions of many of their customers. Many industrial bakers substitute beef tallow for lard in order to compensate for the lack of mouthfeel in many baked goods and free their food products from pork-based dietary restrictions (Kashrut and Halal).
However, in the 1990s and early 2000s, the unique culinary properties of lard became widely recognized by chefs and bakers, leading to a partial rehabilitation of this fat among "foodies". This trend has been partially driven by negative publicity about the transfat content of the partially hydrogenated vegetable oils in vegetable shortening. Chef and food writer Rick Bayless is a prominent proponent of the v