The peanut is not a true nut, but, like the pea, a legume. It’s one of the most important sources of protein worldwide and accounts for two-thirds of all snack nuts consumed in the United States. The Spanish peanut is the variety sold under the Diamond brand. In the United States, this peanut was primarily grown in Texas but is now grown in more than a dozen states. Smaller and rounder than the traditional Virginia peanut, the Spanish peanut has a very small kernel covered with a reddish-brown skin and is used predominately in peanut candy.