Peanuts have been used for a long time as fodder for livestock, after discovering their use to obtain oil and food, they gained some importance. The flour obtained from peanuts is still used today in animal nutrition, especially for cattle, pigs and poultry. In Italian cuisine, unlike other cuisines, they are not widely used, excluding the preparation of desserts. This type of dried fruit has the ability to stimulate breast milk production in China, for example, new mothers consume peanuts in large quantities. The first peanut butter seems to have been invented by a Saint Louis pharmacist named George A. Bayle Jr. In 1890, when he realized the high protein percentage of these legumes, he wanted to develop a very expensive alternative to meat for the less well-off families at the time.