
Pistachios often get categorized alongside nuts. But they're not nuts at all. Instead, these little green bites of nutrition are the seed of the fruit of the pistachio tree. Pistachios belong to the same family as cashews and have been farmed for over 10,000 years. Native to Iran, Greece and Syria, these seeds have acquired different nicknames in various cuisines. For example, in Iran, pistachios are often referred to as the "smiling pistachio," whereas in China, they are called the "happy nut." Pistachios are available in stores year-round and are primarily grown in the U.S.